I love it when people say that MGs don't work - whenever I use them they're generally fine with only occasional mishaps. I find it funny that people think the MG-42 should be able to single-handed stop 4 times it's own MP cost worth of enemies. MG-34, MG-42 and the M2HB .50 all work fine for me.
Only MG that sucks right now is the Maxim, IMO. One-shotted by LMG Grens with a rifle nade, and basically extinct vs OKW Stuka zu Fuss.
I think the Maxim is great for Soviets due to its 6 men squad and instant suppression kicking in with the first burst. I always laugh when maxim spamming because Ostheer have to retreat immediately or really have to have an overwhelming force. Smart players will find better solutions anyway, but suppression wise it seems more effective.
The MG42 is actually only good with vet and vs USF it is in fact useless due to the riflemen's smoke grenades. No idea what Relic's designers where smoking when they decided to give such an early game inf unit this magic "anti mg button" right from start. USF has free reign vs. Ostheer because of this and it also encourages the blobbing mechanic of USF.
My humble opinion what needs to be improved to make Ostheer viable again:
- slightly increase suppression of MG42 or decrease USF / Soviet grenade throwing range when under mg fire
- buff Scout Car slighty by increasing either its armour or damage output but also increase its price in return
- slightly reduce price for Pzgrens
- reduce tech costs for Ostheer or increase tech costs for all other factions
- buff Panzerwerfer because compared to Katyusha or Stuka this thing is a fucking joke, having in mind its teching and unit cost
And last but not least - and this applies to most Soviet commanders, too:
- rework their old doctrines: leFH, Relief Infantry, Camouflage and some other abilities are under-performing or too expensive to use / build and there are too many overlapping commanders anyway
Generally speaking I find Ostheer to be most fun to play with. Combined arms are more thrilling to use and on paper the units and abilities all seem cool. I do not see any overpowered Ostheer unit and Relic should really try to bring all other factions closer to Ostheer units' performance.