AP use confusion

[scorpio_rocks]

Because they will fire whichever ammo has the best chance of penetration.

Remember AP ammo performance(penetration) "drops off" over range whilst HE doesn't.

the 57mm with 2 HE and 3 AP pen values will, at all but short range, be better using HE - so thats what it fires. The 37mm with 1:4 will be better with AP at all but extreme range so it fires AP.

To see this easily in a tabular form run the utility "WW2_APCalc2" choose the appropriate weapons and see for yourself at what ranges the different guns will use different ammo.