Capt. Thomas Haynes, a fire direction officer with 1st Battalion, 10th Marine Regiment, is part of the fire support coordination center for the fire support training conducted on Camp Lejeune, N.C., Sept. 17, 2015. After the FST leaders decide what they would like to use as a killing asset, the call goes through the fire support coordination center for approval. - Capt. Thomas Haynes, a fire direction officer with 1st Battalion, 10th Marine Regiment, is part of the fire support coordination center for the fire support training conducted on Camp Lejeune, N.C., Sept. 17, 2015. After the FST leaders decide what they would like to use as a killing asset, the call goes through the fire support coordination center for approval.