spend your whole career if you wish just flying.
If only...
The best bit is, you can even go in as one and then transfer role if you don't like it as the common training is quite substantial.
Absolute horsesh1t. The training for each role is very diverse, and a 24 week generic fiasco at Cranwell does not propare you for any role. Added to which OCF or OCU's have a fixed return of service, and there are people at Benson and Odiham who have been waiting for a move their whole career, but as long as they have a med cat, they have no chance of a change of role.
If you have any more ill researched advice, or generally want to offer duff gen from a poorly informed perspective then feel free to keep the nuggets coming.