He's going into 1c711, which is airfield management.
I'm a 1C, these are the Command and Control jobs basically. I'm a 1C3 (Command and Control Operations Specialist) but have fairly frequent contact with Airfield Management. On this deployment atm I actually work directly with them in the same tent; we're the only two in here on our night shifts so I got to know them all pretty well. All are younger Airmen at various bases. Some like it, some don't. Pretty much the case with any job. If he happens to go to RAF Lakenheath, RAF Mildenhall, or Spangdahlem AB, let me know since I'll personally know some people he would be working with!
assuming he has no background check issues he should go intel, if he's gonna be enlisted anything else is a literal waste of time in comparison
He's halfway through basic and slotted already, too late for that besides trying to retrain at 3 or 5 years (depending on enlistment length).
Either way, good luck to him! If he's halfway through Basic he's basically done and just following routine now. He will be going to Keesler AFB in Biloxi, MS for his tech school. Only six weeks long, same place and length as mine. I had a fucking AMAZING time there. If you're of age, it's nothing but fun nightlife and partying, much like college. Can rent a car and drive to New Orleans in a couple hours, definitely worth the trip if you get a few people together and make a weekend of it. Just don't get retarded drunk, NEVER drink and drive, and don't bring anything/go anywhere you aren't supposed to. If he is under age, don't touch or go anywhere near liquor. Show up on time to everything and do your work, you will fly through. Pass that on
As for staying in 20...take it 4 years at a time. This isn't for everybody. I'm 1 year out from separation and can't wait to be done.