This game is amazing! Great combat aspects! The AI I think needs some work to feel special in terms of interactions with them, like they notice a door that wasn't opened before to inspect.etc just simple sub tasks like that would add a lot of personality to them. Maybe even aggression levels, intellectual levels involving of why they do subtasks maybe even sub routines that they play apart of per level that makes each level come alive sort of.
Not trying to say it needs more work and it isn't good, or trying to be the know it all how it should be when it's your game it's great and I could imagine it being more interesting (EDIT: for me) in all sorts of ways. It's a game I don't think many could really grasp the atmosphere of, you definitely have a talent for game development.