Complete the indicated task to unlock the corresponding map in Zombies mode.

Dead Ops Arcade: Play the Dead Ops Arcade game.
Der Riese: Enter unique code from Call Of Duty: Black Ops Hardened and Prestige Edition.
Five: Complete Campaign mode.
Kino Der Toten: Available by default.
Nacht Der Untoten: Enter unique code from Call Of Duty: Black Ops Hardened and Prestige Edition.
Shi No Numa: Enter unique code from Call Of Duty: Black Ops Hardened and Prestige Edition.
Verruckt: Enter unique code from Call Of Duty: Black Ops Hardened and Prestige Edition.