As brit you have the vickers, which has good damage but slow suppression. This is problematic as the blob of doom will not stop before they have thrown 3 incendary grenades on your MG, making it totally useless. No one is telling you there is no counter, it's just problematic.
IN MY HUMBLE OPINION - OKW is a shit faction in teamgames, and I don't say that as allied fanboy, as I also like to play OKW in 1v1. But in 2v2 and up? Damn man, it's just total crap and fairly easy to play.
Every MG has incremental accuracy against infantry models. So blobbing is not rewarding against any MG. On the other hand OKW has no charge-up, oorah or smoke ability. All they can do against your vicker is to outnumber it. Actually vickers are pretty good against OKW.
Also where is the panzerschreck in this formula? I mean everyone complain about schreck blobs. They cant counter schreck blobs, so schrecks should be removed from volks. So if the OKW infantry is not upgraded with AT weapons, you will be able to counter them in numbers?
The thing is:
Rifles are better than Volks
IS are better than volks
If you upgrade volks, with schrecks the gap between those will be bigger. Counter volks with infantry and things will be much better. Put your infantry in cover to get maximum efficiency, and use mgs as support weapons.
The only thing that is really problematic is the soviets performance. Because conscripts are garbage, yet only 10 MP cheaper than volks. I would buff cons, and nerf maxims a bit to encourage soviets to use infantry instead of support weapon spam.