he hated Nazism, but he was drafted and those who refused the draft were sent to concentration camps. Thus he had no choice but to go to the front against the soviets, where he sabatoged his platoons machine gun Then surrendered without resistance.
This is a True story according to his diary.
This is very relevant for research btw. cause there is not much physical evidence about the inner thoughts of those that switched to the red army that isn't in Russian archives which are underfunded for the research gains they could deliver.