Wermacht occupy my country. Nazi kill many people. Years of terror.
My grandfather was fighter. Figher in RAF and then in Soviet army. After the war a political prisoner. Communists bothered that fought on the Western Front.
I hate the Communists and the Nazis also. But this is game. I love this war, but I am aware of the horrors committed in.
My friend want play soviet side. It seems to us that the German side is lighter and we like challenges. But in the future you will see us play wermacht, otherwise we do not become good. Only if you play both side, you know strengths and weaknesses.
Your teammates do realise that not everyone in the Wehrmacht was a nazi, right? In fact, most of the soldiers in the Wehrmacht were either draftees or people who signed up so they could fight for/defend the country they were born in. Plus, it's just game.
Same thing for the Soviets btw