[Imp]

Well you obviosly have a beef I will be honest & say don't know if ammo selection algorithm was changed, could look at version release notes to see but think not.
You could just be percieving it as changed, I don't bother tracking ammo unless its critical during game just get on & play once I have looked at stats for any new gear.
From memory & not realy paid attention HEAT gets used close up or at range once AP pen falls off. Probably uses close up as better chance of a square hit so overpenetration that will make it more powerful than the AP round. Its borederline which will have the best effect so either can be chosen.
As I said you are asking a lot of your crews if you expect them to always have the right round loaded.
What you seem to want is an algorithim that never fires HEAT exept at range & even then not till the 3rd shot with a high hit chance to preserve ammo.