Also, AH seems to frown on field-modified weapons setups. The 4-bomb-hardpoints setup is a field-rigged thing. From the factory they only have the 2 bomb pylons, so maybe (?) HTC is just modeling that.
P.S. But a pair of 2k eggs would reinvent suicide dive-bombing in this game, hehehe. With rockets and your 20mm you could take out 2 hangars! I'd like to see that option (perhaps perked, as mentioned)