Penetration is way to high. Needs to be curbed to 150~ OR reduce the amount a Pgren squad can carry to 1. The trouble is when you get two Pgren squads with 4 Sherks. They can instantly wipe a piece of armor.
But they are also very costly.
They can be good, only the sprinting is kinda stupid.
I mean, 2 panzers on a light vehicle can wreck a piece of armor..