Air Force announces change in OC-ALC senior leadership Published Nov. 25, 2014 By Staff 72 ABW/PA Tinker Air Force Base, Okla. -- The Air Force announced last week that Brig. Gen. Mark Johnson will replace Brig. Gen. Gene Kirkland as the Oklahoma City Air Logistics Complex commander. General Kirkland will become the director of Logistics for Air Force Materiel Command at Wright-Patterson Air Force Base, Ohio. General Johnson is currently the commander of Defense Logistics Agency-Aviation in Richmond, Va.