Feels the same as MW2 with a twist of black ops zombies mode.. Not worth the full price of the game..
The single player is extremely lackluster, and didn't really keep me gripped. Mostly all of the campaign was a "deja vu" effekt, where I actually have played before on Cod 4 and MW2..
Multiplayer basically feels like you're playing MW2, which would be great, if it were a new engine, and a new game, NEW thinking.. but it honestly feels like you're paying out for an expansion pack. The only thing I noticed that they'd change quite significantly in this game were the sounds of the guns, but they don't sound good at all. It just sounds like they've made them sound 'heavier'. The sounds between the guns are BARLEY different.
The "kill confirmed" mode is pain in the ass after a while when you hear the voice say " kill confirmed" when you pick up every dog tag..
Oh and a lot of campers on that game mode.. If there is a dogtag lying around, be carefull there might be a camper waiting for someone to come and get that dogtag..
Spec Ops is basically a repeat of MW2, too. The new Survival mode is basically MW3's attempt at 'MW2 meets Nazi Zombies'.