315th MSG welcomes new commander Published June 6, 2019 By Capt. Rashard Coaxum 315th Airlift Wing Public Affairs JOINT BASE CHARLESTON, S.C. -- The 315th Airlift Wing welcomed a new mission support group commander during a change of command ceremony Saturday, June 1, at the base theatre here. Col. Cherie Roff passed command of the 315th MSG on to Col. Bobby Degregorio during the ceremony. Roff entered retirement after more than 29 years in the Air Force. Degregorio will take command of the group of more than 600 personnel who are assigned to Security Forces, Force Support, Logistics Readiness Squadrons and the Civil Engineer Flight.