Seabees from Naval Mobile Construction Battalion 3 fire the AT4 anti-tank rocket during a weapons qualification and familiarization exercise held at Camp Roberts in Paso Robles, Calif., Wednesday. Nearly 400 Seabees from NMCB 3 received training on the M240B and Mk2 .50 cal. machine guns; the Mk19 and M203 grenade launchers, and the AT4 rocket launcher in preparation for a deployment scheduled later this year. NMCB 3 provides combatant commanders and Navy component commanders with combat-ready warfighters capable of general engineering, construction and limited combat engineering across the full range of military operations. U.S. Navy photo by Utilitiesman 3rd Class Petty Officer (SCW) Jennifer Stewart, Naval Mobile Construction Battalion 3 Public Affairs Specialist.