TOP GUN U.S. Air Force Tech. Sgt. Joel Meyer and Staff Sgt. Derek Walton train on room-clearing tactics on Ellsworth Air Force Base, S.D., April 5, 2010. Meyer and Walton are assigned to the 28th Security Forces Squadron. Meyer was selected as the 2009 Security Forces Air Force Noncommissioned Officer of the Year. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 529447-H-BWN11-401.jpg Photo Gallery