I hear many people say that it was mainly (some even say only) that they were the SS who were responsible for crimes and genocide during WW2. I know all the sides had some shady sides but they were not comparable then what the Germans and Japanese did. So is the Wehrmacht did contributed to the murders and genocide or they were just common soldiers with theirs sometimes shady side ?
While there is more that could be said, these answers to similar questions may satisfy you:
/u/commiespaceinvader in Just how much of the Wehrmacht was dirty?
/u/TheCzarOfPie in How invested in Nazi ideology was the average German soldier?
/u/Jon_Beveryman in How prevalent was the "Clean Wehrmacht" myth before the Wehrmacht exhibition in 1995? And did any historians continue to push it afterwards?