377 MDG group officers selected for promotion Published Dec. 12, 2012 KIRTLAND AFB, N.M. -- The Air Force Personnel Center announced Dec. 6 that Team Kirtland's Lt. Col. David Bush, 377th Medical Operations Squadron commander, and Lt. Col. Douglas Littlefield, 377th Dental Squadron commander, have been selected for promotion to colonel, and Maj. Lauren Wolf, 377th Medical Group, has been selected for promotion to lieutenant colonel.