The order I wrote down these achievements is the order I found to be the most successfull. If you find a different way feel free to share in the forum.
I will seperate this walkthrough into the Singleplayer and Multiplayer. Start the game on Elite. Elite is not too hard and you will spare yourself a second playthrough by collecting all the stackable difficulty achievements at once. Stay on your toes, keep sniper rifles and crossbows as long as you can and go for cover if you get hit too much or empty your powers.
You will start with a tutorial sequence which wont be very hard. Try for the achievement for getting through a level without dying on this one. In case you should struggle with a level refer to the video playlist from YouTube. Credit goes to the guy filming the videos even though the quality isn't that grand.
During the first Act you should attempt to complete a level without dying. The first level is more or less a tutorial level and should net you these three achivements easily:
Complete a level without dying on Elite difficulty
Walk on water for an easy achivement:
During the rest of the game keep an eye out for opportunities to attempt the following achievements:
Activate Time Stop, kill 3 enemies before time starts again and the achievement unlocks.
Aim for enemies hands until the Disarmed achievement unlocks.
You might get stuck with a clutch grenade and it happened for me on the first level. Switch to Time Reverse as soon as you are clutched and the achievement will unlock:
Toss clutch grenades at enemies until this achievement pops:
Stop time and grab the weapons out of the enemies hands. I suggest doing this on enemies that are alone.
Swipe 10 weapons out of enemy hands using Time Powers
Finish Act 1 to grab the difficulty achievements:
Not too difficult just finish the level for three more achievements:
You may find Act 3 annoying. Keep in mind that you can use your timeshift powers during the turret sections of this level and any vehicle/turret you are using. After the escape, you will of course unlock the following achievements:
Refer to videos on YouTube if you are having trouble on Elite. After Act 4 you will unlock three achievements:
Continue through Act 5 for the three stackable achievements:
Finish the last Act before heading to Multiplayer for another three achievements:
Now that you actually finished the story and got everything you have to get in single player, switch to the multiplayer mode.
First off make sure that you use a custom game type that you created and renamed. Make sure to use a dedicated server so that it will count toward the 48 hour achievement. First we will start with private games since they are the easiest to create.
Start off with a custom Capture the Flag game and bring a friend who will help you. Set the capture limit to 25, time unlimited or highest, instant kill, fast movement, instant respawn and choose a small map.
The idea is to work on getting 30 headshots, 25 melee kills, 25 kills without dying, 50 kills where the enemy has been time grenaded, capture 25 flags, retrieve 50 flags
This can be done in a single match if your partner is willing to help. Both players will need to carry flags but only one will be scoring. The scoring player will throw a time grenade at the feet of nonscoring player. The scoring player will then kill the nonscoring player with a headshot or melee to register a kill while the enemy has been time grenaded. Repeat this until the scoring player has 24 captures and over 25 straight kills without dying. Switch roles until the until the original nonscoring player gets to 24 captures. If the original scoring player captures the last flag he/she should get these achievements:
Capture 25 flags in Capture the Flag
Retrieve 50 flags in Capture the Flag
Now host a CTF game with one capture and get your partner to catch you in a time grenade. Kill him while captured for 30 times, score the flag to finish the match to get:
Host the CTF on the map where you are on a flying ship. The map with the walkways connecting the flag spots. Stand in the middle and shoot the other player as soon as he spawns and fast. Wait till you hear/read the anouncement of your Fury kill and then finish the match for the achievement to unlock.
Host another few short games until you reach 10 and the next achievement unlocks:
Remember to help your partner to finish up any achievements he/she needs by switching the roles.
Play EVERY gamemode at least once and play on every map you can (keep in mind that you can't play each map in each game mode so keep track of which you've played). As soon as you got the corresponding achievements for each game type do 1 on 1 for every map still missing.
Start a Ranked deathmatch, set it to 7 kills (just to be safe) and simply win.
Same as above just with King of Time.
Win a Ranked King of Time game by at least 5 points
The next one might prove a little bit tricky at first but there is a easy way to go about it. Set the Ranked Meltdown Madness match for 1:30-2:00 minutes and let both players collect time capsules. Use the normal time grenades on the reactor of the player who has to loose. As soon as you're done the achievement unlocks.
These two are quite easy so no explanation needed on them.
Win a Ranked Capture the Flag game without the other team capturing your flag
Switch back to custom game types and mop up the remaining achievements; however, I recommend reading the DLC section FIRST because it will make things easier and less time consuming.
Host a dedicated server for 48 hours total then quit
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