Oh I think there is plenty of interest in a viable Fee for player pilots. And for the simulation in general. What Alb pilot here doesn’t start drooling when he comes across a flight of Fees. Easy meat! Real easy. Too easy. I once whacked a flight of 4 (or was it 5?) single handed as they plodded along. A feel good moment but a good simulation? Or perhaps I am just seeing things through my eyes?
Regardless of that to me, the non-programmer, it sounds incredibly simple. Just a (probably) single line of code somewhere in the 2b files that make the .exe think “fixed forward firing gun.” No changes to the .mdl file or .xfm needed as the gun is not really there.
Looking at the 2d files and just copy something over. Unless the magic line is in one of the locked OBD only files.