What was the policy of the Nazis in the occupied Soviet territories?

Hitler’s troops planned a lightning war, during which they would be able to quickly capture enemy territory. At the beginning of the war, it was possible to win a victory over the Soviet troops, because there was desertion in the army, someone voluntarily surrendered, the soldiers did not have a fighting spirit. The German army was supposed to seize the territory, and then Hitler planned to physically destroy most of the population, to resettle the representatives of the Aryan race there.