ORIGINAL: mekjak
My problem is that while the devs say the Geneva Convention stuff isn't supposed to be biased towards one side or another, in practice it does present a whitewashed view of the Wehrmacht. I have not yet seen any mention of things like the Commissar Order, or the order that specified that any disciplinary action for crimes against Soviet civilians and POWs was strictly optional, the horrendous treatment of said civilians and POWs, and the brutality of anti-partisan operations (all of which the Wehrmacht participated in).
But there is an event where one of your units finds a patrol that has been mutilated by the Soviets (the Soviets are monsters while German soldiers are just honest professionals doing their duty?). And there is also an event regarding the einsatzgruppen where the worst thing you can do is turn a blind eye, as if the Wehrmacht did not fully and willingly cooperate with the SS in real life. Not to say that the Soviets didn't do such things, but a lot of these decisions feel way more sympathetic to the Germans or evoke the "clean Wehrmacht" myth. You know, the side that was aggressively invading another country with the ultimate goal of exterminating or enslaving the entire population.
So your complaint is that the atrocities represented are not atrocious enough, and therefore present a biased view? I would gently suggest that you are bringing a biased view with you (certainly your right), but don't expect that everyone else will agree with you. Personally I feel that the events I have seen offer a good flavor and don't "whitewash" anything. They also don't show the worst that either side did. I'm fine with that and I'm not sure why you are not.
Every large set of actions has mild examples and severe examples, it is not necessary to provide the most severe to get a flavor for the set of actions.