Let me help you with that.
I mean, can someone really give me a solid reason that explains why we need Stormtroopers in a doctrine that grants Panzergrens with passive and offensive buffs for 30 munitions ?
2 completely different roles, one becomes armor support and assault infantry, while other is infiltration troop and ambush CQC unit.
What is supposed to be the purpose of a doctrinal at gun with ai ability IN THE ONLY SINGLE FACTION that gets the only non doc at gun with an ai ability ?
Making the AT gun have any actual worth with its abysmal effectiveness against armor, giving the purpose to the high upkeep weapon to be relevant past 5th minute, ammo free way to have that AI support vs 45 ammo burst that might or might not be useful at all.
What is supposed to be the point of m3 halftrack when wc51 can now capture, mount a buffed 50 cal, transport troops, use mark target and drop heavy arty in THE ONLY faction THAT HAS ALREADY a mobile NON DOC reinforce and heal truck ?
When was the last time you have put ambulance outside of base sector and not lost it 15 seconds later in a game that actually features opponents who knew how to play?
I don't think there is a way to explain to you effectiveness and usefulness of 2 squad reinforcing, fast transport that can be repaired by its crew compared to very slow, very expensive, extremely fragile and working on exclusively on friendly territory after setup ambulance.
Literally no one ever used ambulance outside of base territory - how bad can you be to even suggest it being viable in comparison to regular halftruck(that was rhetorical question)?