Complete the 'Welcome to the Hotel Sedgewick' level.

Eliminate a creature.

Obtain a 100% PKE scan on a paranormal creature.

Trap a ghost.

Synchronize 10 View Points.

Complete DNA Sequence 10.

You've experienced co-op

Complete DNA Sequence 8.

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

Complete the campaign on any difficulty.

Find the Soviet connection in Laos.

Escape the Past.

Retrieve the dossier and the defector from Hue City.