Why the RAF reg? You could do anything, be anything, specialise in anything (if you get the right qualifications), and you have picked the RAF reg. Why?
If you've got a brain in your head (which I guess you have being on a student website,) then look at the Royal Marines if you want to be in a infantry job but with the ability to specialise in many different things. If not, get a trade in the RAF, Navy or Army. Signals, logistics, engineers, chefs. Something that wont bore you to death.
Unless sitting around a base looking busy and spending Friday afternoons weapon cleaning (even though you haven't been on the ranges for weeks) for the rest of your career is something you actually want to do?
The RAF reg have a role in the armed forces, yes. But I fail to see why anybody in their right mind would WANT to join the RAF reg as a first choice job.