I had a couple guard guys in my class (97-10), one of whom was married - he got on base housing with his wife and kid. I don't know how the Guard normally works things, but pilot training is a PCS and active duty can bring their family with them. Even if it wasn't a PCS, or if they weren't going to pay for the move, you could bring your family, you just wouldn't receive the benefits associated with it (OHA, primarily).