United States Air Force?

Hello everyone, I am in High School, and I really want to join the Air Force. I have a few jobs in mind, but I'm not sure how to go about it. My father was Air Force Security Forces and wants me to go Air Force, and the more I think about it, the more it sounds like a good idea. A few jobs in curious about is a Helicopter Gunner or Ariel Gunner, (I know most are crew chiefs. Is the only way I can become a helicopter gunner to be a crew cheif? From what I've heard, this job is very hard to get. Is that true? Why?) Security Forces (What would a dog handler do? Are deployments boring?) Crew Chief (I've heard some awesom stuff. They travel a lot, get to deal with Aircraft all day. I'm just not Sure if I'm mechanical.) and TACP. Is this a mos you ask for at the recruiting office, or like special forces that you ask for during Basic Training? Is it just like any other Tech School? How do I go about getting this job? Can I only be recruited by TACP recruiters? I don't want to be Special Forces, and I've been told that TACP Isn't SF, but closer to infantryman. I know what TACP is and what they do, but I can't figure out if they are special forces, or Infantryman. Is training closer to Infantry rather than SF? Anyways, these are my top three. If you could answer the questions i asked, or add any information that would help. I am in Amazing shape, so physically I am not worried at all. I mostly need info on Ariel Gunner and TACP. Thanks!