Another Il-2 guy here from SimHQ. Hey tater and akdavis.
I would go with 1x250kg for the Zero. Not saying that Il-2 is the best reference to go by, (those in the know realize many planes there have loadout "issues")
but it shows no loadouts for 2x100kg for any Zeke variant. Unless, perhaps, there's evidence 2x100 was used?
-B5N Kate: loadouts should be 3 x 100 kg bombs, 1 x 250 kg bomb, 1 x 500 kg bomb, and of course 1 x torpedo.
-Q1W1:
http://www.combinedfleet.com/ijna/q1w.htm says it could carry 2 x 250 kg bombs or depth charges. Do we even have depth charges in SH4?
-The "US Fighter" (a Buffalo) shouldn't even have bomb loadouts, right?
-F1M Pete: way overdone in SH4. Apparently all it could carry was 2 x 60 kg bombs.
-G4M Betty: way off again. Too many correct loadouts to list, other than to say it should carry a torpedo.
-H6K: not sure on this one
-H8K: way, way off. Corrected loadouts should include depth charges and torpedoes.