Metal Gear Solid V: Ground Zeroes aimed to displease fanboys of both platforms by giving PlayStation owners the exclusive Deja Vu mission and Xbox owners the exclusive Jamais Vu mission. However, in an attempt to further anger fanboys, Kojima Productions has announced that those two platform-exclusive missions aren't exclusive at all anymore. Whoops.
The latest Kojima Station podcast (via Gamespot) reveals that both missions will be released for the other platform on May 1st via a free title update. In Deja Vu, you play as Solid Snake from the original Metal Gear Solid; in Jamais Vu, you play as Raiden.
Fans of the game probably won't mind the additional mission--especially considering how short the base game already is.