According to the companies, the decision was made "in response to the overwhelming amount of enthusiasm demonstrated by the Call of Duty community over Treyarch's Zombies mode." Previously, the only way to get the Nuketown Zombies content was to pre-order one of the three special editions of Black Ops 2: the Hardened Edition ($79.99), the Care Package Edition ($179.99) or the PC-only Digital Deluxe Edition ($79.99) — it didn't come with pre-orders of the game itself.
Players who purchase the Black Ops 2 Season Pass, which contains four add-on packs for $49.99, will receive Nuketown Zombies in December if they are playing on Xbox 360; PC and PlayStation 3 players will get the map at a later date. Those who pre-ordered one of the special editions will be able to enjoy it on launch day, Nov. 13.
Activision released a new screenshot of an irradiated zombie on Nuketown Zombies to coincide with the announcement; check it out above. Call of Duty: Black Ops 2 launches tomorrow, Nov. 13, on 360, PS3 and PC.