I was in the military and never once tested for steroids. They'll just test him for narcotics and stuff like that. The only way he would get caught is if he told someone, and they ratted him out (they have a pretty serious honor code). Ask him this, is taking a quick cycle (winter break is maybe 2-3 weeks at best), which won't do much, worth getting kicked out of school? Tell him to just wait till he gets to his unit.