Have you thought about finishing your four year degree then applying to the Reserve/Guard? How about ROTC? Both would be options to get you in a position to apply as a pilot much faster than enlisting would. My two cents...if you want to be a pilot in the AF then do what you need to do to be a pilot. If you want to be ATC then do that. I know you are using the ATC as a means to an end, but enlisting would delay that awhile. By the time you finish boot camp and training it will be the better part of two years. You'd still need to finish a bachelors degree so add another two (if you are deployed then even longer). Do the ROTC thing and you'd ready to start pilot training in about two years. If you have any other questions feel free to ask.