Call of Duty: Black Ops Escalation is out on Xbox LIVE for all you Call of Duty players out there hankering for some new maps.

Gamers will find 4 new maps as described by Activision

"Hotel," where players battle it out on the roof of a Cuban luxury hotel and casino against the vivid backdrop of old Havana

"Convoy," which delivers intense, close-quarters combat at the scene of an ambushed U.S. military convoy

"Zoo," which sets gamers on an eerie ride through an abandoned Soviet Russian Zoo with danger at every turn

"Stockpile," which pits players in a remote Russian farm town, housing secret WMD facilities

Additionally there is a new mode called "Call of the Dead" which sees famed zombie movie director George A. Romero, and cult actors Robert Englund, Sarah Michelle Gellar, Michael Rooker and Danny Trejo facing taking on the unstoppable zombie hoards in ice covered Siberia

If you're a big Call of Duty multiplayer fan chances you jumped on this new content much like a ravenous zombie, if not then this is a pleasant reminder that there's some new content and zombies waiting for you.