Destroy all slingshot targets in 3 attempts.

Take down Castro with a headshot.

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

Complete 'Vendetta' on Veteran difficulty. (Solo only)

Perform an Air Assassination on a Poisoned NPC.

Get 3 headshots in a row using the same clip of M4 Revolver ammunition

Finish the game in Easy Mode

Defeat 250 enemies with headshots

Defeat 70 enemies with the SAS - 12

Find 80 treasures

Defeat 30 enemies with Mk-NDI grenades

Defeat 70 enemies with the FAL