As always, Google is your
friend
If you have the required academics and can pass AOSB then you'd be nuts to join the AAC as an OR. If you want to stay flying just transfer to either shade of blue once they threaten you with a desk; loads of others have done the same.
A distinct advantage of going green is that you can't be offered any aircrew role apart from pilot - no Observers/WSOs in Teeny Weeny Airways.