HEDP is better at taking out armour in real life, because it has a HEAT warhead. Right now the only "armour" we have are light, thin skin APCS. I think it's probably pretty natural that pure HE rockets are highly effective against it. I understand what you're saying, but for right now I doubt things are gonna change. Maybe they might nerf explosions or something a bit since even 40mm HE rounds can kill people inside the vehicle.

I looked on Wikipedia, it says that M229 (labelled as HE in game) has 2.2kg of explosive, whilst the M247 (labelled as HEDP in game) has 0.91kg. If the lined shaped charge (the DP part of HEDP) hits the engine or fuel, it will set fire. The explosive power of m247HEDP doesn't seem capable of it by itself, which seems to be accurate. not an expert though

US 40mm HEDP has HEAT effect and can penetrate several inches of steel, although I'm not sure if pure 40mm HE of both factions should do so much damage against crew inside the vehicles.

Very disappointed at 0 engagement / acknowledgement

Respectfully, this is nothing to do with internet connection. This is a game crash.

This game is basically unplayable. I have crashes at regular intervals with with basically 10 minutes or less playtime.