A U.S. Air Force Tactical Air Control Party candidate struggles to complete his pull-ups during the class's first physical training session, Hurlburt Field, Fla., Jan. 5, 2011. The TACP technical training school involves rigorous academic and physical training standards. TACPs establish and maintain command and control communications, control air traffic and naval gunfire and provide precision terminal attack guidance of U.S. and coalition close air support.