Two Marines from 3rd Battalion, 8th Marine Regiment, sight in on their targets during a Designated Marksman Course with the Division Combat Skills Center, April 6-17, 2015, aboard Camp Lejeune, N.C. The Marines learned range calls, wind estimation, and other basics of long range marksmanship. - Two Marines from 3rd Battalion, 8th Marine Regiment, sight in on their targets during a Designated Marksman Course with the Division Combat Skills Center, April 6-17, 2015, aboard Camp Lejeune, N.C. The Marines learned range calls, wind estimation, and other basics of long range marksmanship.