The German Infantry five-man change will make the commander mandatory in literally every matchup.
Literally EVERY SINGLE PROBLEM (except the 222 not being armored) the Wehrmacht has, including but not limited to...
- Being insta-wiped by grenades and mines due to model bunching (which still, to this day, isn't fixed, while Allied squads sprawl themselves across half the map with five or more models, becoming immune to grenades)
- Not being able to crew abandoned enemy setup weapons without losing the crewing squad after just a single model loss
- Inability to take enemy fire long enough to bring up AT guns/tanks or land artillery hits or perform a flank
- Losing literally all one-on-one fights against all Allied infantry
- Complete inability to survive long enough to chase away a sniper and still remain a threat on the field
...is solved by giving Ostheer five-man squads and allowing them to actually survive long enough during engagements to get things done.
Costs don't matter (although I'm sure they'll be absurdly high for something all factions should have for free simply because more models is always, under all circumstances, an advantage), build time doesn't matter, no restrictions matter.
Having five-man squads will make Ostheer squads actually perform the way Allied squads perform, and that'll be infinitely preferable, even if it means stacking AT guns instead of bringing out early armor, simply because Ostheer has more trouble early game than any other time of a match.