Inspired by the success of Platoon (1986) a year earlier. The first season of Tour of Duty, was filmed at the Schoffield Barracks in Hawaii. Seasons 2 and 3 were filmed at the old set of M*A*S*H* in California. Helicopter scenes with the character John McKay, were filmed on the ground with the rotors of the helicopter turning. In the 3rd season, the platoon joins the SOG. The Studies and Observations Group, which is an elite commando-style unit that operates behind the lines in Cambod ...[Read Story ]