There are 53 objectives in the game, plus another 4 in the DLC. Without replay you can only get 36 of them (40 with DLC) in a single game. The objectives, confusingly referred to as "Challenges" occasionally in-game, are shown in your menu under "Objectives" during a mission. You can review the ones that have been awarded by looking in your menu under "Player Progression -> Statistics".
The list of objectives by mission is at the bottom of this solution. Here's some detail on how they work:
ChaptersIn main story missions - "chapters" - there are four shown, but you can only be awarded two of them. There is always a "Collect All Loot" objective, and it is always obtainable. There are also three others, and you will be eligible for one of them at the end of your mission. Which one you are eligible for depends on your playstyle.
As you play through each level, the game decides what "style" your play is, based on how stealthy you are ("Ghost"), how many objects you interact with ("Opportunist"), and how many people you kill or knock out ("Predator"). At the end of the level, you will be awarded the Thieving Objective
for your playstyle if you satisfied its requirements. It doesn't matter if you filled the requirements for the other playstyles, they don't count. Also, if you manage to perfectly balance two separate playstyles, you can be awarded the "Hybrid" playstyle, and miss out on all of them. The only way to avoid this is to heavily favor one play style, or to replay the mission. Alternatively, you can forgo that challenge and use the slack available to still get to 25.
Client JobsIn addition to the chapter challenges, there are also 20 more available in client jobs from Ector and Vittori. These challenges do not depend on playstyle.
For most of the six client jobs, there are four objectives available. The final mission from Ector only has one, and Vittori's second job has two that are mutually exclusive. Details on how to start these missions are below with the objective list.
StrategyIf you aren't going for every piece of loot in every chapter for your own reasons, there's no reason to go through the pain of trying for that objective more than once. You'll need to do it once for another achievement:
After that, you can safely omit the "Collect all loot" objective from each chapter mission, greatly speeding things up. You'll have 9 objectives completed from the chapter missions, and you can easily get the other 16 from client jobs. Each client job is short, and they have no separate areas - you can always backtrack throughout the job to find any missing loot, so "Collect All Loot" is much simpler and far less tedious than it is in the chapter missions.
It's not a bad idea to refrain from upgrading your bow damage until you've finished the first five of the client missions. There are two client missions that have both combat takedowns and remaining undetected as objectives. It's possible to get both in one run; pull out a broadhead arrow and fire it into the knee of an unsuspecting guard. While they contemplate transferring to Skyrim, walk up behind them and perform a takedown. If you aren't getting the takedown prompt, try swinging your blackjack at thin air once - away from the guard - that always worked for me. The problem with the increased bow damage is that it can kill the guards outright, making this problematic. Trust me, it's no fun to try to down guards with repeated blunt arrows while trying to stay hidden.
If you are paying attention to this achievement from the beginning, it should be no issue to get 25 objectives as you play. If you miss one while playing through, I'd recommend pushing forward rather than immediately replaying the chapter.
If you are forced to replay parts of the game, I recommend replaying the client jobs rather than the chapter missions - they're far shorter, easier, and have four objectives available rather than two.
ReplayingAs mentioned before, you can only get 36 of the challenges completed without replaying missions. You can, if you want, replay missions to boost your objective count. You cannot get the same objective over and over again. You can, however, replay to get an objective you missed, or to get the objective tied to a different playstyle than you got the first time through.
To do this, you
must return to the mission's beginning point in the city map and start your replay there. Do NOT use the "Replay" option at the end of the mission. Also, be aware that the game's counter will no longer be accurate. Here's the details on how that all works, hidden behind spoiler tags to save room:
*** Spoiler - click to reveal ***- There are essentially two types of replays in the game: a replay immediately upon finishing a chapter, and a replay from the city map. The first you begin by hitting X as soon as the chapter wrap-up screen comes up (the game prompts you to continue or replay at the end of the chapter). The second you begin by returning to the area in the city where the chapter begins. These are marked with the same glowing mist as they are in regular play, but when you walk up to one and click X, you'll be asked if you want to replay that chapter.
- An immediate chapter replay immediately resets your progress in the game - your game will instantly appear as if you had not just played the level. The objectives you got on your first playthrough disappear, you have the same equipment as when you started the mission last time, and if you quit back to the city map, you'll find that your game progress is where it was before you played the level the last time. If that was your first playthrough, then the game will be unaware you've ever played the mission.
- Returning to the chapter beginning in the city map and restarting there is slightly different. Your equipment isn't reset - it's whatever you brought with you. This also goes for focus upgrades. Your in-game counter for objectives will reset as if you hadn't played this chapter before, but if you quit before finishing the chapter, the objectives you had completed before you started this replay will reappear. Most importantly, although your in-game counter is reset, the game does NOT reset the counter for this achievement.
- This means that by replaying chapters through the chapter replay points, you can bolster your objective count by grabbing objectives you haven't gotten on previous runs. You CANNOT get the same objective more than once, but if you played chapter 1 and got "Collect All Loot" and "4 Headshots (Predator)" on your first run, you can replay it and get "Extinguish 9 Light Sources (Opportunist)" on your second run. Your in-game statistics will say you have one objective, but the counter for this achievement will be 3. If you have the paid companion app, the counter on it is correct.
CREDITSThanks are due to several TA users whose comments on this solution dramatically improved it. lTN95l set me straight on the client objectives in the first place. It was IL1971 that pointed out that two of the challenges in Vittori's second job are mutually exclusive. RoiDesFeuilles and xxDrunkenJedixx both discovered the "Hybrid" playstyle - much to their dismay, I imagine. BrokenKnight was the source of the DLC information. Finally, iAMxYUNGxGxBABY helped iron out the intricacies of the replay system.
Chapter Challenges (main story)Predator Challenges are marked with (P), Opportunist with (O), and Ghost with (G).
Chapter 1:
Chapter 2:
Chapter 3:
Chapter 4:
Chapter 5:
Chapter 6:
Chapter 7:
Chapter 8:
Ector ChallengesNote: If you haven't met Ector yet, here's how:
*** Spoiler - click to reveal ***Go to Basso and speak to him about his jobs. You can't do this until after the first full story chapter. The last job listed is meeting Ector. Once you accept this and head to the marked location, Ector will start giving you jobs, although he won't give them all to you until you've proceeded far enough in the story.
Ector Job 1 (must be past Chapter 1):
Ector Job 2 (must be past Chapter 3):
Ector Job 3 (must be past Chapter 6):
Vittori ChallengesNote: If you haven't met Vittori yet, here's how:
*** Spoiler - click to reveal ***Anytime after Chapter 2, go to Basso and speak to him about his jobs. One of the jobs is "Carnivalesque"; finish this job to meet Vittori.
Vittori Job 1 (must be past Chapter 2):
Vittori Job 2 (must be past Chapter 4):
Vittori Job 3 (must be past Chapter 5):