A reasonable post
I was able to counter this in this way:
Get a Panzerfüsilier blob that can compete with the con blob.
Get a JP4 to deal with the m5 that will eventually follow.
So its blob vs blob. Don't bother for teamweapons, since the get instantly destroyed. What also works nice is a KT (getting a KT to counter cons, gj relic), if you manage to survive until stage.
Against Guards Jäger light infantry seems to work fine in combination with the ostwind, had a 2vs2 where my ostwind had 100 kills and my JLI squad about 50.
Obersoldaten can't fight them cost effective, get maximal 1-2 squads and use them cautiously, try not to bleed them or you will lose the manpower war.
So or so, it's turns into a blob vs blob fight (gj relic with that)