Leadership changes Published June 14, 2013 By Staff Reports Robins Public Affairs ROBINS AIR FORCE BASE, Ga. -- Col. Roger Johnson is now the Warner Robins Air Logistics Complex deputy maintenance commander. Johnson was formerly the 78th Mission Support Group commander. Taking the reins as the commander of the 78th Mission Support Group is Col. Chris Decker. Prior to taking command here, Decker was the 75th Mission Support Group deputy commander at Hill Air Force Base, Utah.