If you study ww2 like I have. Wehrmacht was a ww1 army with a small proportion of modern weapons. The soldat fought like lions and were led by tigers. They overcame so much until not enough of them were left standing. The tanks were always in short supply but they got a boon from conquered nations and they used them highly effectively. UK alone out produced German tanks from 1940. Think about that. Remember my premise. Germany failed to produce the weapons. They did. That is a fact. Remember that greater Reich had more manpower. More steel. More power Gen. More labor force than ussr. More everything except oil. More food production. And produced far less.