At what part of the vehicle should I aim my LAT / HAT / tank shell?

I'm not sure where to aim my weapon when shooting at armor vehicles in Project Reality. I mean, I realize that the front armor is the strongest while the (rarely accessible) underside armor is pretty weak. However, I'm not sure between the rest. Should I aim for the side armor, the tracks, the turret, the back side, the top, etc.?

And if there's no uniform armor behavior between different armored vehicles, is there anywhere I could find a guide for this basic "where to aim" question?

Solution 1:

The under side and rear armor is always the weakest to my knowledge. Followed by the side armor. The rear armor is where you'll want to aim, unless you have a way of hitting it's underside.