200210-N-BD308-0591 CAMP SHELBY, Miss. (Feb. 10, 2020) Steel Worker 2nd Class Rob Sharrow, assigned to Naval Mobile Construction Battalion (NMCB) 133, fires an M240 machine gun during a field training exercise (FTX) at Camp Shelby, Miss. FTX provides a robust training environment where Seabee forces plan and execute multiple mission essential tasks including convoy security, force protection, and camp buildup prior to deployment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Levingston Lewis/Released)