On Monday, gaming site Major Nelson wrote that Activision has revealed it will launch the next expansion pack for Call of Duty: Black Ops for Xbox 360 on May 3rd. Dubbed “Escalation,” the new downloadable content — for Xbox LIVE subscribers — will sport five new maps, including four that can be played in multiplayer mode. New maps include “Hotel,” where you’ll battle on the roof of a Cuban hotel and casino, a Russian “Zoo,” a WMD “Stockpile”, and “Convoy.” And what’s an update without some more zombies? Escalation will reportedly offer a new “Zombie experience,” with new playable characters. It’s unclear how much Escalation will cost, but we’ve already begun raiding our couch cushions for spare change.