Seaman Dustin Evans, an equipment operator in Naval mobile Construction Battalion 3, acts as a ground guide for a water truck as it sprays water on a construction site for a K-Span building here in Camp Leatherneck. NMCB 3 is deployed to Southern Afghanistan to provide construction and engineering support to the region. NMCB 3 is part of the Navy Expeditionary Combat Command’s warfighting support elements, providing construction operations and security in support of overseas contingency operations.