Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.

Break the siege in the battle of Khe Sanh.

Receive orders from Lancer.

Destroy all enemies on vehicles during the prison break.

Take down Castro with a headshot.

Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

Radio in a naval bombardment that kills at least 4 Japanese soldiers.

Complete 'Semper Fi' on any difficulty. (Solo only)

Score a goal on a volley

Survive 1 wave in a Special Ops Survival game.