China Rising is the first expansion pack for Battlefield 4. It was revealed on May 21, 2013 on a Battlelog post stating that those who pre-ordered the game would receive the expansion at no extra cost. China Rising includes four new maps on the Chinese mainland, ten new assignments, new vehicles, as well as the Air Superiority gametype. It is available to those who pre-ordered the game at no extra cost. It was released to premium players in December 3, 2013 followed by a general release on December 17, 2013.