Der Riese (German for "The Giant") is the fourth installment in zombies mode. It is available for download through Map Pack 3 in Call of Duty: World at War, as well as the Rezurrection map pack in Call of Duty: Black Ops. This map is based on a real top-secret Nazi project known as "Project Riese." In the game, it is set in a top-secret Nazi factory. Teleporters, Monkey Bombs, and the Pack a Punch Machine are first introduced in this map.