In what is swiftly becoming an annual tradition, Activision's latest Call of Duty looks set to be the biggest launch of the year. Luckily for us, it's also a damn good shooter. What it lacks in innovation it makes up for with a highly polished campaign, the traditionally phenomenal multiplayer modes and a raft of cool bonus additions: split-screen, 3D, zombies, a full hidden game... It's all there. Once dismissed by hardcore players as the "other" COD studio, Treyarch is now a real force to be reckoned with in the FPS genre thanks to World at War and, particularly, Black Ops.