I could be wrong but I think he’ll be in some kind of inactive status until he ships to boot camp. As a practical matter, he probably will not be able to get these tickets until he is issued a military ID card. If I remember correctly, the deeply discounted military tickets must be purchased in person on a military base. He will need an ID card to get on base and buy the tickets. There are “military discount” tickets that some base morale, welfare, and recreation offices will sell over the phone and ship to you, but those discounts are pretty comparable to the discount tickets you can find online. I would have your son check with his recruiter to see when his military ID card will be issued, my guess is that it will be at boot camp. If someone has some current information please feel free to correct me, I separated from the military four years ago.