“Call of the Dead” from the Call of Duty: Black Ops Escalation DLC was a hard act to follow for Treyarch. Instead of trying to up the star-studded cast of its previous effort, they decided to just bring you more interesting Zombies settings with new gameplay mechanics. Ride on a rail or down an aqueduct while you cut down the endless horde of the undead with all new weapons. Annihilation will cost you $15 and arrives on Xbox Live tomorrow with a future date for PC and PS3.