U.S. Navy Utilitiesman 1st Class Luis Alarcon, left, with the 20th Seabee Readiness Group, reviews proper aiming and shot-grouping techniques with Hospital Corpsman 3rd Class Sara Phillips, with Naval Mobile Construction Battalion (NMCB) 25, during Naval Construction Group 2's M4/M16 qualification course in Woolmarket, Miss., Feb. 11, 2014. NMCB-25 performed weapons qualifications in preparation for a scheduled deployment in support of Operation Enduring Freedom.