First just let me say that I liked bot the campain and the spec ops missions and the new survival mode.
As for the online its a huge let down. Nothing new really except the maps (which arent great), a few new guns (some just new names same old gun), the kill cams never show what happend on your screen. Seems to be a line of sight issue at times, you will be say sniping and cant see someone yet but on they see you and when you watch the killcam you were right there in there vision but couldnt see them. ALSO let me add that its the same engine from MW2 so all the stupid hacks and cheats are back and more then ever. Less then a week in and its insane the amount of exploiting thats going on. I didnt care for black ops, but I already traded this game in at gamestop and am back on black ops. HUGE LETDOWN from a company that put ZERO EFFORT into the online just ported MW2 and shined it up.