Former 911th Communications Squadron commander recieves Meritorious Service Medal Published April 15, 2010 By Master Sgt. Mark Winklosky A PITTSBURGH IAP ARS -- Col James B. Hurley, 911th Mission Support Group commander, presents Maj John T. McMahon, Jr. with the Meritorious Service Medal for his service as the, now former, 911th Communications Squadron commander.