In celebration of the sixth anniversary of the game, EA Los Angeles released Black Sheep, the lost mission of Command & Conquer Generals. Black Sheep was originally slated to be the third mission in the Global Liberation Army campaign where players were given command of the Toxin Tractor, a slow-going farm vehicle modified to spray a deadly corrosive agent. This mission installs as any other custom player-made map, so you will need the full game in order to play it.