Grens are incredibly fragile mid/late game; I'd love to see a 5th man either via vet like REs or via upgrade like Brits.
Gren fragile meme is long dead, axis have better value units for trading, the good allied off-maps are much better in 1v1 than 2v2, axis still has aura units that haven't been touched in years and are completely op, axis has better indirect across the board, heavies are almost always useless at this point.
I think it's rather indicative that a reduction in received damage from the p4 command aura is equivalent to a 5th member. Though the auras are far more meaningful for the effect on other tanks, it's very effective for infantry as well.
I'd rather ostheer have lategame fuel upgrades that increase the vet bonuses of their infantry/tanks at this point.
Essentially upgrades that make gren vet scale into stormtrooper level stats and such.