Lots of Wermacht soldiers did horrible things, and should have gone to trial for them. Lots of other Wermacht soldiers were forced and did not want the role. Maybe they even surrendered at the first chance they got, and this is what happened to them, died in labour camps.
The vast majority of POW captures were in the final year of the war, when it was teenagers and middle aged people who were quickly trained and sent to the front lines, in many places.