DLC-Escalation for Call of Duty: Black Ops will be released for the PC on June 2

Activision inform  that on 2 June will be released for Call of Duty: Black Ops  a content package that will  have extra Escalation 5 new maps:

• "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
• "Call of the Dead," Escalation'sZombie experience assembles a zombie-carnage dream team to fight against a new zombie horde menace, all set in the dark, ice-covered isles of Siberia