New faction expansion: US Navy SEALs - Players will have a choice between three primary SEAL groups that operated in Vietnam: MACV-SOG Naval Advisory Detachment, SEAL Teams, and US Navy Underwater Demolitions Teams.New terrain: 'Khe Sanh' - The novel terrain, covering 225 km2, will enable the players to design and run missions around Quang Tri Province as well as some crucially contested locations of the Vietnam War.Prairie Fire will enjoy a time-limited 20 per cent off sale on Steam. The update is dubbed 1.1 and will bring no less than 225 km2 terrain, US Navy SEALs, multiple new vehicles, static weapons, weapons, helmets, and more. Is getting a major content update today in the form of Arma 3 Creator DLC: S.O.G.