A U.S. Marine escapes from a Modular Amphibious Egress Trainer during underwater egress training at the Infantry Immersion Trainer facility, Marine Corps Base Camp Pendleton, California, March 19. - A U.S. Marine escapes from a Modular Amphibious Egress Trainer during underwater egress training at the Infantry Immersion Trainer facility, Marine Corps Base Camp Pendleton, California, March 19.