The item is not available on the STEAM marketplace.
Call of Duty®: Black Ops II - Nuketown Zombies Map
Call of Duty - Black Ops II - Nuketown Zombies
All Zombies fans can now get their fix with the Nuketown Zombies map. Nuketown Zombies is set during the events of Moon, and after the end of the multiplayer level from the original Black Ops game.