U.S. Marines with Engineer Support Company, 8th Engineer Support Battalion, complete the construction of underground bunkers during a field exercise at Camp Lejeune, N.C., April 26, 2022. Engineer Support Company conducted a field exercise in order to increase readiness while providing tactical utilities and heavy equipment support in an urban terrain environment. - U.S. Marines with Engineer Support Company, 8th Engineer Support Battalion, complete the construction of underground bunkers during a field exercise at Camp Lejeune, N.C., April 26, 2022. Engineer Support Company conducted a field exercise in order to increase readiness while providing tactical utilities and heavy equipment support in an urban terrain environment.