Treyarch has taken a cue from Valve's upcoming Left 4 Dead and the world's love of zombie action. Developer Treyarch has revealed that Call of Duty: World at War will include a Nazi Zombie Mode, in the latest edition of GameTrailers TV. Once the single player campaign has been completed players will gain access to the mode which sends waves of Nazi Zombie adversaries in the players direction.
The mode sports an economy system which allows players to purchase new weapons and rebuild barricades to slow down the zombie rush. How crazy does it get? According to Treyarch the team got to the 23rd wave before becoming overwhelmed by the zombie horde. Now that is a cool little extra.