cobra ur thinking about the YB-40 and yah it only had like 20 .50's and a ton more ammo accually they were used alot over the war........not in bombing missions but used as stragglers to attracked captured p-38's and P-51's and P-47's and shoot em down i got three of 4 stories in one of my books about it..........
captured american planes would fly beside forts for a while then attack them when most unsespected........ so thats when a YB-40 was sent out to look like a straggler.......and would shoot down captured planes

got to love a 17 accually shooting down 38's 51's and 47's and a couple spits..........

no reason y it shouldn't be implimented into AH all it was was a exteramly modified B-17F.......accually the YB-40 is the reason y the chin turrent was added to the nexct version of the for the B-17G which is what we have.........