The CEOs of Marathon set and prepare Robotic Moving Targets for use in the Moving Target Technique Limited Objective Experiment 2 at Marine Corps Base Quantico, Va., Sept. 24, 2013. The robots, developed by the Australian company Marathon, present a target the size of an average person, fall over when shot and can simulate average walking and running paces from four to eight miles an hour. The experiment tests the most effective technique and method to engage moving targets with the M-4 carbine and M-27 infantry automatic rifle. (U.S. Marine Corps photo by Pfc. Eric T. Keenan/Released)