Black Ops is the seventh game in the call of duty franchise. The main thing to note is that this game was developed by Treyarch, the same guys who brought us world at war. Fans of the CoD franchise will be familiar with the game mechanics on black ops as they haven't changed.
Zombies mode; Multiplayer; gripping set peices and stroy mode
Endless enemies who seem to have endless grenades; developed by Treyarch