Question: Infantry anti-tank weapons

[Revenant]

I have question concerning various infantry close quarter weapons.

And I am particularly interested in those to fight tanks with.

For example, soviet infantry lately has a lot of different equipment. Those include molotov cocktails, various mines and RPG grenades with different stats.

Lets say I want to equip my men with the best ones.

I noticed that some of those weapons come with both HE and AP kind of ammo. I presume that the main diffence is that the "HE" type ammo can be used to combat both infantry and vehicles, but "AP" only to combat vehicles.

I also noticed that such weapons usualy have some kind of "HEAT" rating but no "HEAT" ammunition of their kind is present. Does that mean that even HE or AP pieces of this weaponry use this "HEAT" rating somehow, or should I look only at their relevant AP and HE penetration value against vehicles?