A U.S. Air Force C-130J Hercules crew preps their aircraft before a mission at the Air Force Weapons School, briefs his crew before a flight at the U.S. Air Force Weapons School on Nellis Air Force Base, Nev., May 11, 2012. The Air Force Weapons School is a five-and-a-half-month training course which provides selected officers with the most advanced training in weapons and tactics employment. Throughout the course, students receive an average of 400 hours of graduate-level academics and participate in demanding combat training missions.