Battlefield 4

The story, according to the Battlefield website, follows American VIPs' evacuation from Shanghai and an American squad struggling to make their way back home; however, still no information has been revealed about what branch of the United States military they are from, however MARPAT (MARine PATtern) camouflage can be seen on the characters throughout the trailer, as well an UH-1Y Venom leading one to assume they are US Marines.