PN
I would love to correct you for being wrong, but given that I don't know who you are, where you were at the time, which country we are talking about or what they did - I'm not sure I can!
Why not keep 3 Sqn RAF Regiment as the FP asset - they were excellent, and I doubt anyone ever said thanks for their efforts.
But I don't see why having them there would justify keeping the GR4s et al.