Panzergrenadiers?
Panzergrenadier best range is mid not close. Wasting time to move it close is probably not worth it
because:
1) Received accuracy bonus of PG affect the fight less
2) Pgs have bad DPs on the move
and there is also the timing and the resource investment in getting Pgs and the bleed issue...
If you want a glasscannon unit consider lowering size to 4 or 5 since Hp is generally better than target size, equipped with a bolt action rifle to excel far and offer Lmg upgrades...
I apologize if I sound critical I am not and you guys deserve congratulation for the effort you put in trying to improve the game. I am simply trying to understand the design intent so that I can make the best suggestion fitting that intent.