190919-M-BH464-1135 CAMP PENDLETON, Calif. (Sept. 19, 2019) Students with Field Medical Training Battalion West, put on their M50 gas masks during the Field Medical Service Technician Course final exercise at the FMTB training site at Marine Corps Base Camp Pendleton, California, Sept. 19, 2019. The final exercise is the last task the sailors must complete before earning the title of Fleet Marine Force corpsman. The staff and instructors at FMTB-West are responsible for training the corpsman and officers who provide medical support to Marine Corps units. (U.S. Marine Corps photo by Lance Cpl. Drake Nickels/Released)