Fred2 gave space for 3 primaries and 4 secondaries for non-player ships. If this has been expanded beyond that, I know nothing about it. It would mean some changes have to be made in Fred, too.
Personally, I don't think the primaries should be expanded beyond 3 apparent banks -- it just gets too messy, not to mention ridiculously overpowered as far as play balance goes. For that matter, I should think four secondary banks ought to be more than enough for any one bomber for any one mission. I mean, five banks? One could put some of
everything in there! Good missions make Alpha 1 not be a one man show; having five secondary banks would work counter to that.

