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Original forum post: http://www.callofduty.com/board/viewtopic.php?f=111&t=471040&sid=b98o0aiik8bc36qmk2gvkvl8k1
"An epic Zombies experience with all-new playable characters. For Zombies fans, "Escalation" features a unique Zombies experience. We can't wait to take the wraps off of our new Zombies map, Call of the Dead, a very special creation for all Zombies fans.