“Sergeant Castro” awaits rescue in an underground water well during a 36th Mobility Response Squadron training day on Andersen Air Force Base, Guam, May 2, 2013. Close to the end of the course, 36th MRS members learn that the simulated, stranded paratrooper was diseased and it was up to the Airmen to continue his mission to complete training. (U.S. Air Force photo by Airman 1st Class Marianique Santos/Released)