List of things I noticed when I played a round or two:
General
The smoke from the muzzle flare of tank guns when firing looks weird, like squarish particles instead of the normal smooth ones (although that could be due to my graphic card/settings).
OstHeer
The Ostheer's halftrack doesn't lockdown.
I'm not sure whether it was intended, but the Elefant has no hull-mounted machine gun.
When upgraded with the Defense veterancy upgrade, the Elefant's armour skirts do not appear on the chassis.
USSR
The Outpost doesn't reinforce infantry squads. I don't remember seeing any changes on this, kindly point out to me if there was. On another note, the manpower cost and construction time reduction is greatly appreciated! ^^
When a KV-2 is already on the field, the error message on the KV-2 summoning tab on the commander abilities when moused over reads, "Only 1 Tiger available."
The Penal battalion...upgrade (downgrade? I lol'd when I read the description, good one) for conscripts has the tool tip "Requires Not One Step Back AND". What's the second requirement?
The gun of the SU-76 doesn't elevate very high, but that could be due to modelling limitations.
Partisans' Demolition Charge ability tooltip when in stealth is incorrect; it should be "Must not be in stealth", etc...
On a side note, I'm not sure if it has been asked earlier, but are there any plans to change the M18 Hellcat to be closer to its real life counterpart? High speed, low armour, somewhat better gun than the M10 Wolverine's 3-inch AT and smaller compared to the Wolverine (but slightly wider).
I'll post the USSR screenshots first