How I would rebalance the Type Hei LMG+ reasoning

I’m gonna repeat myself again here though a warning I don’t care about squad itself but people pointing to historical flaw of this

The only historical flaw with this squad is they drop with their shield on which again this is a game and most people overestimate that shield . German helmets from Assault ENG squad have 83% damage reduction that’s enough to cause most weapons not being 1 shot to head yet nobody seems to complain this will be just another squad and in time it will get power creeped and will be forgotten