Well the campaign truly is a Call of Duty campaign. It is fun but it's the same as ever. Enemy AI paying no attention to friendly AI. They'll stand in the open getting shot by friendlies waiting for me to show myself, or they'll come around a corner knowing right where I'm at. Gets to be a bit much sometimes.
Also, big yikes on the multiplayer. I'm sure I'm getting slow in my old age but this game is sketchy online. Ground War was fine, but some of the smaller maps it's just odd. Shoot first die first the Call of Duty way. Even in kill cam I get the drop, hit them 4-5 rounds only to die instantly. Plus they'll be shooting all around me before hitting me. I'm sure kill cam isn't accurate but come on. Then there was one realism match where I'd try some good fashion camping, only to be instantly shot by someone coming around the corner. Sometimes felt like they were already shooting, and in kill cam they come around the corner knowing where to look. Pretty sure I'd be too far away to see me on radar, or at least in such a way as to tell right where I'm at.
Or they have just been playing the game for 50 hours already and know every nook and cranny in the game, in which case I shouldn't even bother.