

Submitted by: reliczz_ Easy Shortcut to Round 15 Within the vault, flick up on the left analog stick and press the button that typically jumps when you're out in the wild.

From there, you can find your Data Vault. Submitted by: ign_cheats Unlock Dead Ops Arcade 2Ĭomplete the campaign's first three missions to unlock the Safehouse. Submitted by: joeharrison94 Nightmare ModeĬomplete the campaign to unlock Nightmare Mode, which allows you to play through the campaign from a different, zombie-fueled perspective.
