Treyarch will be unlocking all the zombie maps this weekend. This should be rather good news for those yet to unlock all of the game's hidden zombie content. In commemoration of Presidents Day holiday in the United States, Treyarch will be opening up Dead Ops Arcade and Five modes for all players until Monday.
For those unfamiliar with these modes, Dead Ops Arcade pits four players against against wave upon wave of zombies in arena style firefights until they face the final boss: the Cosmic Silverback. Five lets players pick one of four key characters and persons of the Cold War, including John F. Kennedy, Robert McNamara, Richard Nixon and Fidel Castrol as they attempt to fend off waves of zombies in the Pentagon.
Black Ops is currently out on PS3, Xbox 360 and PC. Despite many vocal users complaining about bugs and problems regarding the PS3 and PC versions, Treyarch's Mark Lamia assures fans that those are mostly "edge cases" and the vast majority are not experiencing such problems.