Mark Richter (right), Marine Corps Systems Command’s Marine Expeditionary Rifle Squad team lead, explains the Marine Corps Load Effects Assessment Program, or MCLEAP, course to Marines from The Basic School Dec. 20, 2013, on Marine Corps Base Quantico, Va. The Marines were performing new equipment testing on the fitLight Trainer timing system, an upgrade MERS made to MCLEAP to obtain more concise data for improving current and future gear for infantry Marines.