Assasins Creed Brotherhood is strictly multiplayer based, I mean sure there is a story-line sneaked in to make it a full retail game but Ubisoft planned it to be just a multiplayer so if you want something to play with your friends, ASSBRO it is. But, Black Ops on the other hand has a story-line that is to me a little be lackluster but still pretty good and a nice multiplayer. So, it depends would you like to try out a new type of multiplayer 3rd Person Assassin Fun or a Cliche but still enjoyable FPS shooter.