U.S. Army Spc. Matt Harcarik performs the tire-flip segment of Mystery Event 1, during the 412th Theater Engineer Command’s Best Warrior Competition at Fort Devens, Mass., April 21, 2013. The Mystery Event 1 consisted of an obstacle and confidence course timed evaluation. Competitors were required to flip the 450-500 pound tire over twice. Harcarik is assigned to the 411th Chemical Company, 479th Chemical Battalion, 302nd Maneuver Enhancement Brigade. (U.S. Army photo by Sgt. 1st Class Lyndon Miller/Released)