You see the thing is, without "fanboys" or people that prefer to play one faction over the others. Threads like this would never be made and balance disucussions would not happen.
I honestly would not call this thread a balance discussion. In the first post you summarized your feelings playing Oberkommando. Not really a discussion where you point out that this unit needs a buff or that one.
I slightly wonder, to be honest, why you left T2 (Medic Truck) out of the equation as the leIG is a great tool combined with Volks. Volks do not deal much damage, they have good survivability and lategame scaling due to a Schreck. In the first few minutes they can still compete vs opposing infantry, but once BARs or PPSh41 hit, they can only do much with nades. Yet they can still reveal and be a meatshield for damage dealers like Fallschirms, Obers or the leIG.
The other posts are usually either off topic, or ones by VetLolCake are an agreement. Nowhere you really state any balance changes. The only thing I see is you asking for design changes (more allround units, ...), but that's not a balance but a design discussion. Jagdpanzer, leIG and mines.
PS: Against Flak HT rushes you can try to wire off on quite a few maps. Kholodny ferma for example has lots of points that can easily be wired off to prevent it from roaming so freely.