A recently leaked flyer all but confirmed the existence of the next Call of Duty: Black Ops map pack, but now it's official . The next pack will be called Escalation, and will feature four new multiplayer maps and a new zombie level. The pack is due to arrive on the Xbox 360 on May 3 which means, if it follows the same pattern as the previous map pack, First Strike , we should expect to see it on PC in June. Read on for a short summary of the maps, including one set in a Russian zoo.
There will also be another zombie map, but there aren't any details of that just yet. Ascension, from the First Strike map pack, added new creatures to fight. Hopefully this one will be similar.