United States Air Force Tactical Air Control Party (TACP) Specialists and their German Air Ground Operations Squadron counterparts conduct Close Air Support training at Grayling Air Gunnery Range, MI. br br A United States Air Force Tactical Air Control Party (TACP), refers to an individual or team of United States Air Force personnel with AFSC 1C4X1, who are aligned with a conventional United States Army or United States Marine Corps combat maneuver unit or to an Air Force, Army, Marine, or Navy special operations unit, to provide precision terminal attack guidance for close air support aircraft, artillery, and naval gunfire; establish and maintain command and control (C2) communications; and advise ground commanders on the best use of air power. (Read more:wikipedia.