As an ex Finningley Flt Cdr and AAITC assessor I can only say that it behoves you to get as fit as you possibly can. The purpose of the "beasting" (sorry I meant to say physical exertion) is to make what would be simple leadership exercises in the comfort of a nice warm hangar more difficult in the time frame and environment available. ---- Its a damn site more difficult to think logically when your knackered!
DO NOT guage your fitness on the bleep test - you'll end up thinking yourself into a comfort zone that the Flt Cdrs and DS will destroy in the first week.
"Hill Fitness" is like being "Match Fit" the difference between being able to cope and wondering if you're going to die. Work on your anerobic fitness as well as the aerobic, when you feel your lungs are about to burst run/walk faster, go further. Carry heavy weights everywhere, break in a decent pair of boots, give yourself the capacity to deal with the unexpected by not having to worry about tiredness, pain and sore bits.
Good Luck!
