A U.S. Air Force Tactical Air Control Party Airman writes coordinates down on his vehicle's windshield during Green Flag-West 13-2 Nov. 7, 2012, at the National Training Center, Fort Irwin, Calif. TACPs are Ranger and Airborne qualified, and are proficient in static line and high-altitude, low-open parachute tactics, as well as in air assault and scuba operations. (U.S. Air Force Photo by Senior Airman Daniel Hughes)