True, but salvage doesn't make up for lack of caches, and buffing Stugs so that they're competitive in 4v4 would make them badly OP in 1's. RA doesn't help much when it comes to squad survivability in 4's so the only way to make Grens viable is to add a 5th (unless you want to make Osttruppen the standard infantry for 4v4's).
5 men units should not have access to LMGs.
Imo
Pioneer need to be 5 men.
Pg need to become cheaper and get 5 men with g43 doctrinal, maybe limited to commander without super heavy tanks.
Stug could swap TWP with JPs camo.