Useless late game? It can easily be used as cannon fodder and capture unit. It's useless in your hands perhaps. They are anything but useless.
Wanna play 1vs1? Then I will steam-roll you, but play 3vs3+ and they are useless.
My ideas are very decent rebalance-way after beeing more or less destroyed with last patches. Longer refresh, now Faust gets nerfed. Now people play Osttruppen because the give option to build flamers and early PnzGrens.
Edit: The idea is to make them useful for large game-modes and not overpowerd in 1vs1.
-> 2nd weapon-slot can be locked behind T3 or T4.
-> passive-def.-bonus can be locked behind Vet3 or an upgrade
-> non-doc sand-bags will buff. all Osttruppen, also in other commanders.