I can't really judge the British or American units yet, but just looking at the editor place holders, they seem okay, but we won't know for certain until we see them in action.
The Russians, however, I feel are lacking too much.
I can easily forgive some of the gaps, such as the T-28, T-35, T-40, T-50, BA 6, BA 20, IS-3, super heavy artillery and mortars, LA-9 fighter,and so on. These are units that are almost completely unnecessary and would only be nice bonuses.
There are some items I'm on the fence over though. Such as: ALL Lend Lease equipment, SMG Infantry, Mountain Infantry, 100mm BS-3 ATG, 85mm ZP-39 ATG, I-15 fighter, ZiS-30 SP ATG, T-44, OT-34, KV-8s Flamethrower, and so on. These are units I feel should have a presence in the game, but I'm not going to really argue for because they aren't vital.
However, there are a few units I feel are critically lacking. To be exact, these units are: KV-85(And/OR IS-1), light air-defense units(ZP-39 37mm AA, ZP-40 25mm AA, Zis 42 w/37mm AA Guns), transport choices (currently they only have the one single truck).
I mentioned the Tank problem, but I'll repost it here too:
I implore you to add the KV-85, not just because I adored the tank. Definitely my favorite Russian tank of the war. The big turret on a little T-34-85 body never looked right to me, and the stronger and larger KV frame fits the turret in a much more aesthetically pleasing way. Plus in terms of game play, I already dread the idea of 'what high defense value unit can I use against German armor' because my the only tank option is going to be the IS-2, which is near worthless, as far as I'm concerned, because of it's pitiful ammunition supply. The standard choice of SU-85, SU-100, ISU-122, all have the same problem as the IS-2, terrible ammunition reserves, in addition to the other drawbacks of being assault guns.
From an art standpoint, the KV-85 wouldn't even be hard to make. Chop the turret off of a KV-1 chassis, grab the turret on a T-34/85, make it a tiny bit larger, and paste it back on. That's essentially what the KV-85 was, same chassis with a different turret.


Good KV-85 literature:
http://www.battlefield.ru/en/tank-devel ... -kv85.html
Opening sentence:
The (lack of) light air-defense units:The KV-85 Heavy Tank was not an epochal machine in the history of Russian tank design and construction. Although it was not produced in the thousands, this tank still made a contribution to the victory over fascism.
When every single AD unit the Russian AI floods the battle with are 85mm units, even in Barbarossa 1941, that does just not sit right at all. Even if the whole AD unit class is rebalanced to be less of an impenetrable air umbrella and extremely potent anti-ground defensive unit, we're still talking about a gun that is nearly the equivalent of an 88mm being the basic, best, and only, choice for Soviet Air Defense. At some later point, they get the T-90 SPAAG, which I'm fairly certain the AI is going to avoid anyways. The idea that pretty much every single Russian AD unit the player will encounter from 1941 to 1945 being an 85mm stuns me.
Compared to the lack of well protected, high armor value Soviet tanks, and the lack of light AD units, the lack of choices for transport really isn't all that important. More of an annoyance, but then historically I don't think the Russian motorized many of their units, I mean how many times have we seen pictures of infantry riding on top of the tanks as a means of transport? If the Russians could 'load' infantry units on to their armor units, that would be amazing and perfect, but I'm not holding my breath for that. If you devs are open to the idea of that being a Russian specialty, I'd enjoy the opportunity to convince you of it's merits, as well as balance it to be useful but not overpowered.