Mmm, I'd love to see a P-38 with that kind of firepower, it doesn't really need an upgrade, I beleave the 38 has some of the most effective hitting power in the game thus far, the 4x 20mm's do have harder hit but on the planes that there mounted, there normaly on the wings. But the 38s guns all tightly packed in the nose like that, I can't think of anything better then with 4x 20mm cannons... Ahh... :-D
Edward