Not running the Air Force Marathon this year, but still want to be a part of the festivities? If that sounds like you, Air Force marathon officials have a mission for you. Once again the  September 15 race is looking for 2,000-plus volunteers to do everything from unwrapping the medals that runners receive at the finish line to post-race clean up. Volunteers do it all and race officials have announced that would-be helpers can start signing up at www.usafmarathon.com. “We couldn’t have this marathon without the support of the volunteers,” Jeanette Monaghan, a volunteer coordinator, said in a press release. …