look at the facts after D Day the british
hawker typhoon was the most efective close support aircraft and yes it packed a heavy punch mounting 4 hispano 20mm cannon and was also able to carry rockets/bombs
QUOTE
Bottom line is that;
American aircraft were rarely alone, but should be purchased in packets of half a dozen or more.
German FBs are quite good as they are.
British I don't know about, but flights of three seems reasonablery rockets and bombs