U.S. Airman 1st Class Levi Ayott, left, and Staff Sgt. Amy Zmak prepare an F-35 Lightning ll aircraft during the 4th quarter weapons loading competition on Luke Air Force Base, Ariz., Dec 18, 2015. Ayott and Zmak are weapons load crew members assigned to the 61st Aircraft Maintenance Unit. U.S. Air Force photo by Staff Sgt. Staci Miller