AI is horrible, Thief, Unreal, SOFII all had better AI. The most annoying AI thing, when a baddie is laying down (like a sniper) if you shoot at them they ALWAYS stand up. I've gotten this regardless what difficulity setting I play.
the outdoor levels it's cool how they sort of surround you, but they're still dumb "realistic" only makes them harder to kill, not any smarter.
indoor levels are horrible, boring design. OHHH I'm in a lab! (that's new)
the outside ones look great, it plays smoothly. I absolutely hate the weapon system, It's cool how you can drop weapons to get a new one, but EVERY FPS I've ever played. it goes 1 = weakest weapon 10 = highest
FC should release a patch that auto assigns your weapons based on strength. No matter how many times I press "4" I never expect the pistol. So, I resort to having to drop all my weapons and pick them up in order so I can keep my 10+ year FPS logic intact
The save points is great, but there are a few spots where you have to go way too far, with too much action going on to hit the save. The river boat level with the helicopters and dudes on the bridges with the Rocket Launchers is a perfect example.
Is this game hard? no, not really. I got stuck on the room with the sprial floor because the baddies were spot on with the snipping. I also got stuck before that because I didn't press the three levers in order, and it wasn't letting me get past the last door (bug?) took me a long time to figure this out.
The indoor AI is horrible, I can stand infront of a door and wait for the baddies to keep coming, I had a pile really high of dead dudes who apparently didn't see the other 6 bodies right there and decided to stand there and look for me, even tho I was 2 feet away (but ducking)
outside AI has a lot of little junky aspects. 2 guards are talking, I'm 5 feet away behind a barrel, I pop up and shoot one in the head. He goes FLYING and the other dude is "hay! is everything alright?" did he not hear the gun? or at least wonder why the dude he was talking to was all of a sudden on the ground bleeding?
most annoying AI bug for me, if baddies are chasing me in a jeep and I drive by the water and jump out of my jeep right before it hits the water, they will follow in their jeep, and die instantly, because hummm none of them can swim?
I am stuck on the Valcano level (last one) but besides that I haven't found the game all that hard, and I haven't really found any spots where I "had to" use stealth.you could duck in some brush and the badies would just go "I know your around here somewhere!" The AI besides that is above average, but that's not saying much. Thief is what 6 years old? And has far better AI.
in the end FC is just a better looking "find the key card" FPS with no real innovations.