Not as good as Modern Warfare 1, campaign feels like "rambo" most of the time, it's you against the world
Killing 300 soldiers alone in a battle doesn't feel really realistic... unless you are Leonidas, then it's ok
The action and the enviroment is the best in all games, I play in a 32" monitor and it feels really nice. Sound is perfect aswell.
Game still has some graphic and body collision issues, like those you see in counter strike, that bodies go thru walls and stuff...
The 2 player Coop missions are reeeeeally nice, best idea they had, at least if you have a friend to help you then you are not alone against the world anymore =D