i agree with you on the boys at rifle. i tried it out for the first time and it made me think of the part at the end of the movie "saving private ryan" where tom hanks is shooting a pistol at a german tank.
Firing the pistol at a tank when you're wounded should call in a P-51 flight that bombs the tank and all nearby Jerries. That'd be the roxxor!!11 But no, seriously, MGs shouldn't damage ships. Except maybe fighters' MGs, as strafing ships is so much fun.