150217-N-KR961-002 PORT HUENEME, Calif. (Feb. 17, 2015) – Equipment Operator Constructionman Zachary Darrow, assigned to Naval Mobile Construction Battalion (NMCB) 3, fills up a generator’s gas tank during a Command Post Exercise (CPX). The training helps 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)