If you like FPS games this is one you dont want to miss
So it feels realistic enough most of the time and is really fun to play co-op and just as fun single player.
Except, sometimes your support guys will vanish and be off the map and cant move back onto it, or they both try and move when theyr close to each other and get stuck and you have to run back to where they are order then move back into the level then get them to move forwards again.
But after you play though the story a few times you get the feel for where enemies are and how to attack them with out blowing your cover which makes it easier to play in realistic mode and level up faster.
JUST BUY IT AND PLAY IT!!!!!!! cuz its fun and a very good game