the game is ok... as in MP... haven't played the game it self....but so far I still like MW3 MP better when the servers didn't lag like crazy so I cant play it any more.
I ran into a few things for BO2 like the server crashing a few times and loading issues with logos and what not when you hover on some ones name and at one point I could not change my logo as it would get stuck on the loading screen.
as for the sound of the game its still weird like there other games not as realistic and deep sounding(gun shots) as MW3 ...but the foot steps are louder then MW3 which i Like..
Down side is the maps arnt great and there arnt alot of maps...only if you sign up for the cod elite crap you can get 5 more maps....but it will cost you 50 a year ....
MP gamers still suck no matter what cod game you play as you run into games where every one is camping and no one is killing any one put the one guy running around lol
but i guess that what the elite thing is for to play with players who play....