[Imp]

These have come up before
1) What versions are you running infantry normaly reserve last few rounds of ATW for use against armour so they don't fire them at infantry.
2) This has been discussed before & is not realistic. The crews do a pretty good job of switching ammo normally but do get it wrong on occasion like anyone would.
If you want to choose a round select it when it loads not when it fires so now if you have HE in the gun thats what you have to fire.
3) Why exactly a HE round is quite capable of taking out the HT or its driver which in game terms is a kill. The AP wrecks the vehicle with luck the HE even if it does not penetrate sends a blast wave straight through the drivers vision slot then it crashes if not wrecked already.