This optional objective is active until you trigger the final puzzle.
As you head to the final Map room, you need to perform an Air assassination. You will see a large pillar in the middle of the main room. This is your best option for set up. Sneak around to the Western side and climb up to the top of it. Look down and spot the leader who is pacing around the area. Wait for him to get into range and then pounce on him. He must be caught unaware or before entering Conflict for it to work.
For a quick reset, use a Smoke Bomb and try again. Be sure to keep any ledges above his position in mind as they allow for a very fast retry.
- Don't get into conflict
- Air assassinations 0/1