AI is smart enough, growing more difficult as the story progresses, and you have a good amount of moves and tools at your disposal. I only really have two gripes: 1) a couple segments of the game are guns-blazing, action-centric which doesn't play well with stealth mechanics. During those segments you can be sitting still for 10 seconds straight and still have a good chance of missing unless you're scoped in with FN2000. 2) the dlc/expansion missions must be manually selected in order to play. While they continue to increase the challenge and make use of mechanics barely explored in the main game, I can't help but feel that there is a drop in quality in them compared to the main story. There are no debriefings after the 3 missions, just a generic "Mission complete" image. Enemies would often get suck in silly places or there'd be places you think you can interact with, only to clip through them.
