"For physical training sometimes, you play a little football," he said. "But I would say that, the best football experience the last four years was what we called HLZ football -- the Helicopter Landing Zone. The smaller copter we had in Zare (in Afghanistan), we had teams, and it used to get really competitive. You play on the rocks and the gravel, and you fall and you can get injured pretty badly. Sometimes there would be shooting while we were playing, and we'd have to get down on the ground and whatnot.