U.S. Air Force Airman 1st Class Michael Schena (right) and Staff Sgt. Melvin Marshall (left), both 757th Aircraft Maintenance Squadron aircraft armament systems specialists, prepare an AIM-9M Sidewinder heat-seeking air-to-air missile for loading onto an F-15 Eagle aircraft during a weapons load competition on the flight line at Nellis Air Force Base, Nev., on Jan. 14, 2011. Weapons load teams are evaluated for use of the checklist, safety and overall speed during the quarterly competitions.