150219-N-KR961-004 PORT HUENEME, Calif. (Feb. 19, 2015) – Construction Mechanic 2nd Class Jonathan Hughes, assigned to Naval Mobile Construction Battalion (NMCB) 3, holds an M2 .50 caliber machine gun mounted on a HMMWV during a Command Post Exercise (CPX). The training helped NMCB 3 Seabees sharpen tactical skills and maintain the battalion’s overall readiness to deploy. (U.S. Navy photo by Mass Communication Specialist 3rd Class Debra Daco/ Released)