First: i think they cost alot of manpower (340). I know there price got dropped from 360 to 340 but 20 mp isn't a very big difference.
Second: they die relatively fast on the battlefield vs rifleman but do a little bit better vs conscript. so i think an armor buff isn't a bad idea to do there high mp cost.
third: the only way they are truly effective is as an at unit support alongside a pak43 and p4's. But the panzershreck cost 120 munition so i would have to wait a while before i get that much munition since i have to pay 60 munition for the medic bunker and also get lmg's upgrade.
Those are the problems i have with the panzergrenadiers they aren't that effective on the battlefield do to there high mp cost and there low armor. so they are next to useless
![:( :(](/images/Smileys/sad.gif)
that's just my opinion on the panzergrenadier.