China Beach

Troy Evans (Sergeant Pepper) was a Vietnam veteran. During a reunion on Good Morning America, he stated the show gave him a sense of closure.

McMurphy's pilot boyfriend is a Captain (wearing two silver bars on each shoulder) and has Command Pilot wings on his flight suit name tag (pilot's wings with a star surrounded by a wreath). To earn Command Pilot wings you have to be a rated pilot for 15 years and have 3,000 hours of flight time. No pilot in the USAF would be a rated pilot for 15 years and amass 3,000 flying hours and still be a Captain. Besides, assuming he graduated college at age 22 and flight training at 23, and then flew for 15 years he would be 38 years old. Clearly he isn't that old. [See Wikipedia article on "U.S. Air Force aeronautical rating" for rating criteria]