Maybe that is covered already - and I expressed in the past concerns.
But today my concerns peaked up again.
In an amount of articles there is mention to snowballing effects. That's precisely ONE of the issues. Bad luck in the first turn(s) for Germany.
Graciously in the latest game my opponent agreed on a restart - after the 1st turn. Germany suffered a grandtotal of 8 losses (8.5 if we include fuel due to a motorized division lost), plus 1 Fuel to rush 1 Stuka. That's a third of their seasonal economy. In ONE turn. Specifically the turn where they should be like God descended on Earth (Barbarossa start).
Luck? Unluck? That surely comes into play - but it is a game crippler. You may as well restart than to have a game that is doomed already. What if it's a full ETO campaign? Redo the last turn? Maybe. It's still a bummer.
It's not just a matter of Turn1 anyhow - where to me the solution is that on T1 (and probably extended to the Soviet turn) there is a +1 (or -1 in Soviet turn) modifier to rolls and overruns; or simply roll two dices - Germany picks the one they want. The more I play the more I feel that's needed.
There is an abyss of difference between a game where Germany suffers 0-1 losses on T1, and one where Germany suffers 8. (Seen both). I've been the Soviet in the game where Germany suffered 0-1 losses, and I did not had grand problems later on (Admittedly that game was wrapped in October '41, as Germany had 5 planes in their Destroyed box, 2 Stukas and 2 Ju88. Probably what produced the change in Air Table and how the double plane result in CAS works). In that game, I admit, I expected to obliterate the Luftwaffe in Summer'42. Planning ahead with Flood the Skies card, and Major Air Offensive picked up in Spring'42 as Large Card. (Don't remember atm if VVS reorganization is in '42 - if that's the case to prevent Luftwaffe to fly was primary plan). With the new type of losses - sure denting more PPs as 8-4 gets the hit, all the CAVs ended up on the map. So from November '41 to pratically Spring, save some cavalry losses to happen (which a card may make up for) Soviets would have churned out new planes too.
Cards are also another issue - Germany lacks good cards. Soviets have aplenty, and are better.
There are directly comparable cards (Often Economic based). Soviets have already a better economy (with in general a better ratio of PP spent per unit - once one learns the ropes, you'll get these 4-4 Guards perishing almost each turn to be rebuilt for 1 PP. And maybe you even net a BG out of them to help against overruns!). And these 4-4 are better than anything Germany can throw at you for 1 PP!
So - Economic cards. Small for 4 PP for Soviets, vs Small for 2 PPs. Soviet swing!
You'd think operational / ground cards are better for Germany at least? Let's see... German Generals - 1 shift to all your attacks (at range 6) but it's Medium. Want to look at Katiusha? Small - 1 shift to all your attacks (but your HQ has only range 4).
Zhukov that is a Medium card (so comparable to German Generals) is 1 red bolt (even in bad weather), in attack and defence, for X turns. On a 6 range of hexes. (And you just wait to combined that with some white bolts from Shock Armies that even allow you to reroll blanks! Or a New Tank Model! For 2 ground bolts in attack without even committing a plane).
I could go on - and on - and on - but how all of that is going under the radar, I cannot get a grip of it.
In general Germany has quality of troops and operational superiority - Allies (or Soviets in this case) production / quantity and mass of stuff.
At some point the 'quality' of troops comes short because the production cannot keep up anymore with the losses suffered.