A320 Murray,
I take it you are looking at the military as a proper career in itself, rather than as a stepping stone to the airlines?
As Fra has pointed out, the RAF flying training system is geared primarily to produce fast-jet aircrew, and you will be expected to have that as your goal. Certainly at some point down the line you may be streamed for multi or rotary, but telling the board at OASC that you want to join to fly heavies may not be the best initial career move.
You'll also have secondary duties to perform as an officer and will spend a considerable chunk of each year on detachment or ops, sometimes with people firing lethal stuff at you. You may well be required to fire lethal stuff back. If you're aware of all this, then apologies for teaching you to suck eggs.
By the way, hi Fra, landings improved yet?
ST