Air Force AFSC/Job Selection Help?

im currently attending school to for fighter crew chief across the street from me are the heavy crew chiefs. Its pretty cool going to the hangers everyday and getting to put your hands on jets. As far as combat goes you will never see it but you will always train for it. Even working on the flight line. Dont pick security forces they deploy ever 6 months and work crazy long hours and you will probably see combat. Air traffic control is a good way to go but a lot of people fail the tech school for that job. Aerospace propulsions is really cool to i would try to get that job. As far as fire protection goes that will be something you will wait a long time for.