Treyarch's Dan Bunting appeared on Major Nelson's podcast yesterday to discuss the upcoming DLC, entitled "First Strike." It will be comprised of four competitive maps: "Discovery," set in the single-player's abandoned Antarctic research facility; "Stadium," a hockey rink; "Kowloon," which takes place on the rooftops of Hong Kong; and "Berlin Wall," set at Checkpoint Charlie. In addition, a new map named "Ascension" for the game's Zombies mode will also be included.
"On this map pack, we focused a lot more on providing variety of weaponry, variety of engagement, ... [and] a lot more verticality, bringing some sniper opportunities to it," Bunting said on the podcast (via Gamasutra)