Capt. Kristina Rennie, a student in the Combat Airman Skills Training Course 10-1A, participate in an M-16 Advanced Marksmanship Class during training in the course on a range at Joint Base McGuire-Dix-Lakehurst, N.J., on Nov. 7, 2009. The course, taught by the U.S. Air Force Expeditionary Center's 421st Combat Training Squadron, prepares Airmen for upcoming deployments. (U.S. Air Force Photo/Tech. Sgt. Scott T. Sturkol)