Airman 1st Class Mario Soriano, 90th Security Group tactical response force, shows retired Marine Col. John Bates a 240 Bravo machine gun used by the TRF as Staff Sgt. Adrian Norwood looks on. Bates, a three-time Purple Heart recipient, visited with the TRF Airmen Wednesday, July 25, 2012, as part of the American300 Behind the Chutes tour. (U.S. Air Force photo by R.J. Oriez)