You have to be active duty to earn one of the spots for Air Force or Navy at Baylor. No branch will pay for your DPT and then you join after. You can get your DPT and license and afterwards you can join and they can help with your student loans, but that is the only way. The reason there isn't really anything for PT is because most of PT is contracted over to private sector. They pay for what they can use, so thats why the MDs, PA, etc. are more actively recruited.
BTW, I dont know you or why you are asking, but do not join the service just because you want school paid for. There are other options for you to pay for school. The servicemen deserve someone who legitimately wants to be there, not just do their time and get out. This is something that really bothers me, as I grew up a military kid and plan on joining to be 4th generation service.