U.S. Army Spc. Timothy Patino, left, assigned to the 547th Medical Company (Area Support), 56th Multifunctional Medical Battalion, 62nd Medical Brigade, participates in a mission oriented protective posture gear exchange, during a training exercise at Joint Base Lewis-McChord, Wash., Feb. 21, 2013. Out of the 120 candidates who entered the training exercise, only the top contenders will move on to the Expert Field Medical Badge qualification in April. (U.S. Army photo by U.S. Army Sgt. Zachary A. Gardner/Released)