Assassin's Creed IV: Black Flag (Xbox 360) achievements

Assassin's Creed IV: Black Flag (Xbox 360)

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There are 60 Assassin's Creed IV: Black Flag (Xbox 360) achievements (50 without DLC) worth 2,255 (1,250)

99,653 tracked gamers have this game, 3,364 have completed it (3.38%)

Achievement Details

By The Book in Assassin's Creed IV: Black Flag (Xbox 360)

By The Book145 (50)

Complete 100% of all main mission constraints.

  • Unlocked by 11,879 tracked gamers (12% - TA Ratio = 2.89) 99,712  

Achievement Guide for By The Book

953,594 (535,740)
Achievement won on 31 Oct 13
TA Score for this game: 2,055
Posted on 31 October 13 at 15:01, Edited on 04 November 13 at 14:34
This solution has 121 positive votes and 11 negative votes. Please log in to vote.
To get this achievement, you need to complete all optional objectives. I wrote my own guide for this at the following link:

The methods I used in this guide were based on how the AI behaved in my game. They may behave differently in your game, but this should at least give you a general idea on how to complete objectives you're having trouble with.

Sequence 2 Memory 1

Tackle the pickpocket
When you get close enough, press B to tackle the pickpocket.

Use smoke bombs to escape combat
As soon you finish the bar fight and regain control, press Y to use one of your smoke bombs

Sequence 2 Memory 2

Hire dancers to distract guards
As soon as the guards your supposed to follow gets to a restricted zone, there will be two more guards and dancers across from them. Simply hire them and press LB to distract the two guards.

Stay out of combat
To the left of the fort’s entrance is a viewpoint on the map. Go to this location to find some crates on the ground and poles and planks sticking out of the wall to grab onto. Follow this path until you make a right turn.

As soon as you land, there will be a window on the right with two guards inside. When the one moving turns away, jump onto a the nearby plank and climb up. Jump up to grab a ledge, then go all the way to the right past the cannon. You will see three nearby guards on your map. When the left one is making his way back to the cannon, climb up and jump to the left. In the direction you need to go, you will see several guards but only one patrolling.

Wait until the patrolling guard is heading away from you, then hide next to the crates directly behind the pair of guards. When you get the chance, move up to the next set of crates so that they are between you and the sniper on the roof. When the patrolling guard is heading back, briefly step to the right so that he doesn’t see you, then move back behind the crate. After this, go up to the door and wait until you’re anonymous to be able to go in. After you exit the door, turn right and dive into the water. Then head to the merchant.

Sequence 2 Memory 3

Complete Roger’s shooting challenge
After shooting a few of the targets, the hosts will talk to you. Do NOT press B near the man that says “continue” over his head. Press B near the man that says “challenge” over his head. Before talking to him, manually reload your pistols. After you accept the challenge, position yourself so that you can see all the targets then proceed to fire after the targets become active.

Pickpocket all Templars
Simply press and hold B near each of the Templars while they are talking to steal from them.

Sequence 2 Memory 4

Use the pistol in combat
Self-explanatory. Shoot one of the assassins.

Tackle the sage from the above
Run after the sage and notice where he climbs up the ladder. Do NOT follow him. Instead run along the street and take the next right. You’ll see dancers on your minimap. Go to them and stand above the stairs. The sage will drop down and run down the stairs. Press B as he passes to tackle him from above.

Sequence 2 Memory 5

Stay out of combat
I assume this means don’t get into open conflict. Don’t get detected to be safe. From the third guard described below, continue towards the green circle on your minimap. Use eagle vision to locate your target on the stairs. Whistle when he gets close for an assassination then loot the key. Climb up the wall to the left of the stairs when the guard isn’t looking. Assassinate them move from one stalk zone to another until you get to another guard. Assassinate when no one is looking.

Move in the same direction and you will head behind a building. There are two open doors you can hide in. Assassinate the guard when he walks by. Continue on to see an angled cart. Run up it to the other side of the wall when the sniper isn’t looking. You will see guards in front of you to the slightly to the right. Move left while hugging the wall around until you get to a tree. Climb it then jump over the wall and open the door.

Kill guards from stalking zones
From the start, jump over the fence and walk into the vegetation to begin stalking. One guard patrols in a rectangular path while the other is stationary. Sneak up to the edge of the vegetation and assassinate them one at a time. I picked off the stationary first then the patrolling one as soon as he came back around. From here, go straight ahead and to the left. You will see a lone guard. Whistle to lure him over to you for your third stalk zone kill.

Sequence 2 Memory 6

Kill guards from behind corners
Go up to the doorway and whistle from the corner. Press X when the guard gets close for your first kill. To the left of your new friend is a wall of cargo. Get to the corner and whistle to attract the nearby guard for your second kill. Get to the corner next to your new friend and whistle to the your third kill.

Free 23 pirates
The prisoners are in groups. Kill your way to the first group which is nine pirates. Run up the bowsprit (pole sticking out the front of the ship) and jump to the next group. If you’re on the mast, you can assassinate one or two guards below. Either way kill the enemies then free the next group which is three pirates. Run up the bowsprit and jump to the next ship’s ledge.

Assassinate the two guards one at a time, then the third nearby guard, and finally another pair before freeing two more pirates. Run up the pulley then jump onto the right side of the mast. Jump to the next one when it lines up. Go down the hatch below for your last group of pirates bringing your total to 23.
NOTE: I don’t know if they can die before you rescue them or the objective is cancelled upon getting 18, but you won’t have that problem if you rescue them in this order.

Sequence 3 Memory 1

Shoot an iguana.
Self-explanatory. You’re looking for a small lizard. Don’t get too close, they will run away.

Air assassinate an ocelot.
Self-explanatory. Ocelots look like small cheetahs. Climb a tree near one and wait for your opportunity. They will run if you get too close.

Sequence 3 Memory 2

Disarm and kill guards
This is a little misleading. You can’t just disarm them then kill them. You have to take their weapon away and kill them with it. To do this, selected unarmed by using the dpad then press B to counter and A to disarm. Now finish them off with that weapon and repeat two more times.

Shoot the rope to save the pirate
Self-explanatory. Have your pistol reloaded and equipped them hold LT to aim at the rope and RT to fire when the reticule is red.

Sequence 3 Memory 3

Use a swivel to kill sailors
You need to kill 3 sailors with the swivel gun. To do this you need to initiate a boarding then run over to a swivel gun and use on the sailors before your crew kills too many of them. You may need to initiate boarding on another ship to get your remaining kills.

Plunder 20 rum
To know what cargo a ship has before you plunder it, focus on it with your spyglass using RB. Remember, sinking a ship then looting it only earns you half of the cargo it is carrying to try to board it whenever possible.

Sequence 3 Memory 4

Plunder a hunter ship
To get a hunter ship to appear, you need to continue to sink enemy ships until your notoriety is high enough. You’ll know it’s a hunter ship if you spot red sails.

Plunder 30 sugar
Same as the rum objective. Use your spyglass and try to board instead of sink.

Sequence 3 Memory 5

Stay out of combat
Do not get detected. You can see enemy ships’ field of vision on the minimap. It is yellow. You can slow down to make sharper turns if you have to. It is a good idea to stay out of range of an enemy ship’s front field of view because you never know when or what direction they’ll turn.

Sabotage alarm bells
To do this, run up to an alarm bell and press B. When you dock your ship and have to run to a checkpoint, you’ll find one on the way. Quickly assassinate the guard and disable it before moving on. You’ll find a second while eavesdropping. You can walk up (while holding A to speed up) to the drunk guard, assassinate him, and disable the bell before continuing to eavesdrop.

Sequence 3 Memory 6

Use one broadside to sink 2 boats
I recommend upgrading your broadside and round shot power before attempting this and to do this one first since it’s harder. Fortunately, the ships you have to sink are very weak. The best thing to do is to weaken them with a chain shot or two followed by a swivel shot. Then you have to maneuver so that two weak ship are close to each other before firing a broadside. I didn’t focus the aim and let it stay spread out to sink my two ships.

Use heavy shot to sink ships
For this; you need to buy the upgrade first. Make sure to do it before starting the mission since it won’t let you leave the wheel once it starts. All you need to do is sail next to a ship and press RT without aiming. Repeat on one more ship.

NOTE: You only have eight ships for these.

Sequence 3 Memory 7

Stay out of combat
When you start, you’ll have to scale a large structure. After doing so, you’ll eventually start to see enemies. Assassinating the first one is easy enough. When you come up to the next two, just speed walk up to them while staying out of their sight and assassinate them. You’ll continue on and see three more guards on your minimap. The one closest two you is set up to be assassinated from a tree. After dealing with him and heading towards the checkpoint you’ll see another guard who doesn’t seem to turn around.

You’ll see yet another lone guard up ahead who can be dispatched easily. You’ll come to a point where there are four guards. Get into the stalk zone and lure/assassinate the first three then walk up to the fourth and finish him off. The next section involves five guards: one sniper, two patrolling, and two stationary. You can deal with the two patrolling by waiting for the one in the back to get near the stalk zone then take out the remaining one. Next, you can speed walk into the nearby stalk zone. Don’t worry about the two guards in front of you noticing you. You’ll make it to the stalk zone before they start a conflict. Sneak past them and continue on to complete the objective.

Air assassinate Du Casse
What I did was sneak up the back of the ship, assassinate the lone guard, and climb the mast when no one was looking. Du Casse will walk right under it over and over.

Sequence 4 Memory 2

Knock out assassins
You can’t kill anyone anyways, so this one isn’t too difficult. Doing this object actually makes continuing the main story easier. Stick to knocking them out one by one and whistling from stalk zones if necessary. Knock out the first two assassins then synchronize and dive into the water. Swim along the shore until you see a stalk zone and a lone assassin. Lure/knock out the assassin to complete the objective.

Loot treasure chests
Self-explanatory and easy since they show up on your map on the way to the main objective. Be sure to get the fourth chest BEFORE talking to James, because doing so will end the mission. Walk behind the two assassins when the third turns around without getting close to James.

Sequence 4 Memory 4

Use sleep darts on guards
Being spotted doesn’t matter so don’t worry if you get into conflict. Simply shoot guards with the specified number of darts. Freeing assassins will replenish your darts.

Use berserk darts on guards
Same as above. Press right on the dpad to switch darts.

Sequence 5 Memory 1

Use the mortar to damage the fort
You must first purchase the mortar upgrade before the mission. To use it, hold LB to aim then RT to fire.

Use a running assassinate to kill the officer
To do this you have to hold RT to run at the officer then press X as you get close to him to assassinate him. You could throw a smoke bomb first to make it easier.

Sequence 5 Memory 2

Kill gunners
Gunners are the red icons on your map that have reticules in them. You have to get these kills while tailing the objective. You will see six gunners while tailing. The second or third gunner you see will be far off to the right. You risk getting too far from your target, so I ignored this one. The fourth gunner shoots someone then walks away. After he shoots, he disappears from your minimap but he still counts! You can assassinate him as he’s leaving the red zone. If you don’t want to risk it, there are two more gunners easily accessible before this part of the mission is over.

Kill guards stunned by smoke bombs
Make sure you have some smoke bombs before you begin the mission. (or you could run over to the shop at the very beginning of the tailing if you’re quick enough) When you have to fight, there will be exactly five guards and an ally. Using the smoke bomb will keep your ally from killing them, so focus on finishing the guards off.

Sequence 5 Memory 3

Use berserk darts on brutes
Make sure you’re stocked before the mission. Brutes are guards that are bigger than usual. An easy way of spotting them is to look at their melee weapon. Brutes wield large axes. Right after your leap into the cart of hay, there will be a pair of brutes walking your way. Hit them each with a berserk dart and you’re done.

Use sleep darts on gunners
Gunners are guards with muskets. You’ll find them in the tall watch towers. As you’re continuing with your main objective.

Sequence 6 Memory 1

Loot treasure chests
Self-explanatory. Just look for them on your minimap. There are six total but you only need three. From the start of the dive, there’s a chest you can’t get to until you lift a hatch on some wreckage. This is part of the mission and doesn’t count for the option objective. There are some more chests in the next section, but they’ll be harder to get so try to get a couple in this first area.

Avoid being attacked by a shark
You’ll see a shark attack some guy taking a leisurely underwater dive. After this, they can notice you so you’ll want to avoid them. It has a detection meter like other enemies, but its detection is very quick so stick to wreckage and seaweed whenever it one close.

Sequence 6 Memory 2

Rescue survivors
Survivors are the icons on your map of a person sticking out of water. I went straight to the main objective and was able to find nine before locating it, so this shouldn’t be difficult. The main objective is a large ship docked next to a small island, so stay away if you don’t have your five survivors yet.

Kill guards stunned by smoke bombs
Once again, make sure you’re stocked up before the mission. Go up to a group of guards, drop a smoke bomb, and kill away.

Sequence 6 Memory 3

Use sleep darts on crocodiles
As soon as you run along the dock, the camera will focus on your objective. After this, use eagle vision to spot some crocs. There are three in this first area. You don’t have much time since you need to get close to your objective, so just go for the closest crocodile and move on. After you exit the wreckage and land on a tilted tree, you will see two more below you. Shoot them with darts to finish this objective. If you don’t get all three at this point, there are several more in the waters as you tail your objective.

Skin a crocodile
This is convenient since you have less to hunt later on for upgrades. The first crocodile you can use a dart on is in front of you as you head to your objective. Press B to skin it after you use a sleep dart.

Sequence 7 Memory 1

Kill guards while hanging from a ledge
Continue with the main objective until you are required to infiltrate the fort. From this point, look left to see a structure for hanging people. Behind it is a tree you can walk along. Do so and jump along until you reach the corner of the fort. You’ll be able to climb up from here. Your first opportunity is a gunner who will most likely yell at you until you pull him off the ledge. Shimmy along the ledge under him and press X to get your first ledge kill. From here, climb up and out onto a nearby pole. Hope to the next one then turn and climb up the wall. Here are your next two kills completing this objective.

Sabotage the alarm bell
this is nothing new. From where you finished the above objective, locate the broken part of this tower and look down. You will see a double assassination opportunity. Take it. Looking off to the right from here is the bell, but you might want to take out the nearby gunner first.

Sequence 7 Memory 2

Kill 4 guards in one kill streak
For this, I just lured four guards to me before dropping a smoke bomb and assassinating them all to complete the objective.

Use blowpip darts on guards
For this you need to hit ten different guards with darts so be sure you are fully stocked before attempting this.
NOTE: The mission ends immediately after you pick up the last keg.

Sequence 7 Memory 3

Kill guards from stalking zones
As soon as the mission starts there will be a guard and stalking zone right in front of you. This is your first kill. Continue tailing the targets and they will eventually call two guards to follow them. At this point there are several stalking zones on both sides of the path they walk. You need to run into one and whistle to kill one, then run into another stalk zone and whistle to get the other. If you don’t get it by this point, there are two more guards and another stalk zone on the right as the main targets walk down a path between two cliffs. There are a few more soldiers and stalk zones on the beach as well.

Air assassinate Chamberlaine
If you want to be sneaky, you can climb up the back of the ship and assassinate the two stationary guards from the ledge. Then climb up the rear mast and wait for him to walk under you. If not, killing everyone else on board and waiting for him to forget about you works as well.

Sequence 7 Memory 4

Use the mortar to sink ships
I recommend upgrading mortars and mortar storage before attempting this. The good news is most of the ships you encounter are weak. The bad news is they’re fast so you have to anticipate where they’ll be when you aim.

Use barrels to sink a ship
Upgrading will help. Make sure you’re stocked then either get a ship to chase you or sail past it and drop some barrels. What I did was drop them near ships then use my swivel cannon to make the barrels explode. This is easier than trying to get the other ships to actually collide with the barrels. NOTE: Make sure you complete these objectives before the ally ship sails directly towards a blockade.

Sequence 8 Memory 1

Kill guards
As soon as you get this objective, there will be guard in front of you. Take him out then run to the nearby stalk zone. A second guard is nearby. As soon as he and your two targets are looking away, run up and assassinate him. Then get into the nearby stalk zone to continue eavesdropping. A third guard is to the right as the two targets walk into the building. Luckily, he’s looking away so assassinate him then continue pursuit. As soon as you enter the building, a fourth guard is on the left. Assassinate him to complete the objective then run across the room and into the stalk zone around the corner to continue the mission.

Use heavy shot to incapacitate the Man O’ War
When a mission warns you to upgrade your ship before you begin, you know something like this will pop up. Fortunately, you don’t have to rely solely on the heavy shot. All you have to do is deal the incapacitating blow with heavy shot. Use anything you like until you get close to that point first.

Sequence 8 Memory 2

Damage the Royal African Pearl with an upgraded ram
Make sure you upgrade your ram at least TWICE before the mission then ram into the target ship. The standard ram does not count as an upgrade, but the reinforced ram does.

Use the fort’s defenses to sink a ship
This one is annoying if you DON’T capture the fort before the mission. If you do, either the fort will instantly sink a nearby gunboat or you’ll have to weaken and lure a ship within range of your fort so that it’ll get sunk. NOTE: Do these before boarding the Pearl.

Sequence 8 Memory 3

Skin animals
At the start, follow the main mission’s checkpoints. When you get to the second one, turn right. You should immediately see a jaguar. You could take it head on, or you could run into the nearby stalk zone and whistle because everything in the Assassin’s Creed world wants to know what kind of creature whistles from bushes. Leave this area and go a good distance away and return to see it respawn. Kill and skin it three times. If you don’t want to do this, there’s another Jaguar spawn on the path you follow while chasing someone with two Jaguars. There’s a map next to the Jaguar.

Air assassinate Vane
As you run towards Vane, the structure in front of you collapses preventing you from using it. From here, go right and you’ll see rows of pillars. Climb them or a structure near them and make your way around to the side of the large, central structure. Jump onto it and keep climbing up and to the right until you get to the top. Synchronize if you want, then assassinate your target below.

Sequence 9 Memory 1

Kill brutes
It doesn’t matter how you do it as long. Near the first bell is a single brute and two guards. In the very center of the green zone on your map is a second brute. Slightly north of him is a building with a guard on top of it. A third brute will be circling this building on ground level. A fourth brute is in the northwest corner of the green zone.

Sabotage alarm bells
Same as the last time you did this. The corner of the area you need to search for your main objective is a bell. If you look at your map and go directly to the east of the first bell, you’ll find a second bell. Objective complete. There’s a third bell in the northeast corner of the green zone if you missed one of the first two.

Sequence 9 Memory 2

Double assassinate Cockram and Burgess
This is easy if you’re quick. There’s a synchronization point near the green zone. Jumping will make you land in a cart of hay. To the right of that hay is a lone guard and a stalk zone behind him. Quickly run up behind him and assassinate him. Then run in the direction he was facing to another stalk zone. Wait until the patrolling guard has his back turned and take him out. Now run in the same direction you were running before and you’ll find the two targets. They’ll be on the other side of a tree barking orders. Next to this tree is a stalk zone. Get there and wait for them to start walking. As soon as they pass the guard facing the other way, speed walk up to them and double assassinate them.

Free pirates
For this, you have to free two groups of pirates. There are only two groups, so be careful not to alert gunners or they’ll shoot the pirates. I like to shoot a nearby guard with a berserk dart that way you can run up and kill them without the gunners instantly shooting the pirates. Both groups show up on your map.

Sequence 10 Memory 1

Stay out of combat
We haven’t had one of these in a while. What I did was swim around the front of the ship so the gunner was facing away from me and climb up the shroud. (be careful of the guy on the other mast. You might have to dart him.) After getting the flag, I dove straight into the water holding B until I was close to my ship.

From this point all you have to do is sail onwards without attacking or hitting other ships. When you stop again, dive into the water and run up on the beach on the far right side into the stalk zone. Run into the next stalk zone when no one is looking. You’ll see two stationary guys blocking your path. Get as close as you can without leaving the stalk zone and whistle. This will bring them both to you. Get back and wait for one or both to turn around then assassinate the closest one. Either whistle or walk up and assassinate the other.

Going the way they were facing and to the left is another stalk zone, go there. Looking around, you’ll see some more stalk zones. Go to the leftmost one when you get a chance. Stay on the far right side of this zone as two guards will walk through it. When they head towards the direction you came from, run to the next stalk zone and again to the one ahead of this one when you get the chance. Whistle to get the officer to come to you then take him out. Do the same for the brute when he gets close. Loot the chest then go back to the stalk zone. Your ship will arrive so swim out to it. Stealth swim if necessary.

Sail to the objective and avoid hitting any ships. When you have to stop yet again, jump into the water and swim directly to the first tower. Run into the nearby stalk zone when no one is looking. Whistle to lure guards and maneuver around the bush as necessary. When everyone heads back to their post, pick one off. Repeat until you can safely climb up the ladder. Go up to the top then press left when at the top to shimmy a bit. Climb up and position yourself to double assassinate the guards.

From the top of this tower, turn around and leap into the trees. Go towards the next tower and you will come to an angled tree leading into a stalk zone. Enter when the five patrolling guards are facing away. From here, maneuver through the stalk zones to the left side of the rock formations. Follow the beach to come to a narrow stalk zone. Wait here until the guard above is going away from you then assassinate him. Now go climb up the tower and assassinate the lone guard.

Use a rope swing to kill the captain
The captain will be pacing back and forth. Wait until he is almost in line with the rope then run into the rope to swing. Press X in the air and kill him from above. After the cutscene both objectives will finally be complete.

Sequence 10 Memory 2

Stay out of combat while finding Hornigold
Hornigold is on a schrooner. I found him via spyglass by navigating straight ahead through some small rocks then around the Devil’s Backbone on the left. Take advantage of speeding around corners of rocks to break line of sight with other ships until you can identify him. After that you don’t have to be stealthy.

Air assassinate Hornigold
I’m sensing a pattern. Run straight towards your target, strafing to the right when necessary to avoid guards. When you reach the island he’s on, look left to find climbable ledges. Climb up and head right under the broken bridge. As soon as you get out from under it, look left and climb up. Make sure the patrolling guards are moving away from you. Above you are two more guards to either assassinate or ignore. Where they were, look around for a tree to get to the target’s island. There are plenty of corners and some stalk zones to get your kills if you’re still being stealthy. It’d be best to lure the two closest guards to kill then the patrolling one behind him. From the third guard, climb up the structure and shimmy around the back. Climb up the broken arch and leap onto your prey.

Sequence 10 Memory 3

Incapacitate all guardians while unarmed
Make sure you manually choose to be unarmed. As long as you don’t assassinate them by accident while they’re down, you’ll be fine. You don’t have to be stealthy here. You’ll know you got them all when the green zone vanishes and a new one pops up.

Incapacitate guardians from stalking zone
Jumping on them doesn’t count! Knock out via conflict doesn’t count! You have to be in the stalking zone as you’re knocking them out from behind for them to count. Do this five times. Use eagle vision to spot them ahead of time. Whistling will work but only if they are chasing you and lost sight of you. Run up to them, then around a tree, then back into the stalk zone. Now whistle and wait for them to come to you.

Sequence 11 Memory 1

Sabotage alarm bells
You know the drill. The first is directly ahead on the left side of the road. Getting the synchronization point will show you the locations of three more. Stealth isn’t a requirement so go nuts.

Visit old friends
If you synchronize this part of the map, you’ll see an Animus fragment. Go to it then look for a skeleton in a cage. Interact with it. When you go through the prison, you’ll notice prisoners on the way to your main objective. Pay attention to gates because you can interact with one of them which will complete this objective. Eagle vision will highlight the people for this objective as well. This is BEFORE you free your ally.

Sequence 11 Memory 3

Use the rope dart to hang guards
The game will direct you to where to hang the first guard. If your game is like mine, the guy next to him will just look at where his buddy used to stand. Climb up the tree and hang him too. If not, there are plenty more guards.

Use the rope dart to pull guards
Do the same thing as above (Y+down) except on the ground. Since the sleep/berserk darts had to be different guards, I assume these darts might be the same way. You’re welcome to try it on the same guard more than once.

Sequence 12 Memory 1

Kill the diplomat from a haystack
You will have to tail him for a bit. As soon as you see a red zone appear on your map run ahead to it and jump into the haystack. He’ll walk up to it and turn around. Kill him.

Kill Rogers from a bench
As soon as this objective pops up, turn left and look for a bench next to the large house under the awning. Sit there and wait for Rogers to walk by. When he does, kill him.

Sequence 12 Memory 2

Kill guards by destroying powder barrels
As soon as this pops up, leave the ship and head towards the green dot. You’ll see several small powder barrels and one large one. What I did was attract attention, throw a smoke bomb, step back, and shoot the barrel. I got five out of eight kills here. With a lot of people now chasing me, I ran around looking for another barrel. I found one near a bell a bit closer to the main objective. I dropped a smoke bomb, backed up, and shot again to complete this objective.

Use the rope dart to kill Roberts
What I did was I faced Roberts and held down Y+LS. This choked Roberts to death without having to hang him.

Sequence 12 Memory 3

Stay out of combat
As soon as you get this, head to the left side of the fort and dive into the water. Climb up the dock attached to the fort when the guards aren’t looking. Assassinate the one that heads inside and the one around the corner. Approach the next room to see two guards. Wait for them to part ways and follow the one on the left. Kill him then wait by the corner. Whistle when the other gets close enough and kill him. Head around the room to a window. Jump out and climb along the wall then climb up when you get halfway to the other side. Pull the guard off at the top before climbing up. Go to the right or the left and kill the gunner. Then wait for the patrolling guard to move away from you and hide around a corner waiting for him to return. When that’s done, look down in the center for your target. When he gets close, do an air assassination. This will complete this objective.

Use guards as a human shield
Right after you kill the target, you’ll get thrown into another fight. There will be three guards as well. You need to use two of them as human shields. When the Templar pulls out a pistol to aim, go near a guard and press A to use him as a shield. Do this one more time. While you’re waiting for the Templar to pull out the pistol, keep countering the guards without pressing any extra buttons to hurt/kill them.

Sequence 12 Memory 4

Free the guardian hostages
As soon as you get to the red zone, you’ll notice some enemies on your map. Approach them, but don’t let them see you. They’re guarding two prisoners. Use a berserk dart on one of the enemies to get the gunner to stop aiming so you can run in and kill them all or just use your pistol. Continue you and you’ll see another group of guards and two more prisoners. Same drill as before. Yet another group lies ahead. Apply the same tactics to free the last three guardians.
NOTE: If your ally gets detected, the gunner stops aiming at the guardians.

Use the Observatory’s defenses to kill guards
When you get to the room with all the guards, you’ll notice the crevices in the floor flashing. When it does, counter a guard then throw them into it. Do this four times to complete the objective.
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