I remember there was a plan to incorporate a RW exercise around Spadeadam/Otterburn during a Mallet Blow in late 80s.
With both the FJ and RW concentrating on other tasks it would have been interesting to see how much interaction (and kills) there was from the strike packages running into their targets.
To muddy the waters certain helos types would have been deemed as friendly and others as the opposition
I'm guess it got canned over lack of deconfliction!