It would be nice to know that every time I hit #2 that I'd hop into the tail gun, #3 I'd man the front gun, #4 the top turret, #5 the ball turret, #6/7 the wast gunners, etc.
I know some aircraft fall out of alignment with that request since they do not match exactly that pattern (Ju88, TBM, etc), but they would be the exception. Right now, it appears that there is not much standardization.
Thoughts?