I am surprised to see the negative views on this game. I think it is the best COD yet. COD 4 was always the one to beat and i think with all the new game modes, fixes from MW2 and zombie mode this is the top of the list now.
The single player is enjoyable, has a good story like a holywood movie with twists. The vehicle additions are done very well and I found it a more enjoyable story that MW2.
The multiplayer is amazing. I like the the new COD points system, the weapons seemed well balanced and killstreaks controlled. The game modes additions are great and even offers basic modes of the common games like barebones team death match.
MW2 was overrun with campers, glitches etc and Black Ops seems to have solved most of these problems. Clearly there will always be campers but there are not as many in this COD. The crazy perks are gone too (commando) and now they all work like they are meant too.
I have to agree with another reviewer who stated anyone who rates this game as 2 star or less is clearly a camper, sniper or a knife person from MW2 who just ran around the map using commando. It is similar to COD 4 (the best COD until this) only made better with all the extras.
The maps are also very good and range from small to very large. he zombie mode is excellent as well and great fun with your mates. Zombies was always better than what MW2 offered and is a great addition with new zombies, bigger maps and new guns.
I recommend you buy this game as it is the best COD and 3 games in one pack so alot better value that the previous outing.