Eh the Nazis were just as bad as the Ustase, but a lot of the normal German army were unaware of the concentration camps.
No offense, but the bolded is false. It sounds a lot like the "clean Wehrmacht" myth. The below Reddit thread goes into way more detail than I could hope to do on my own and has various sources if you're interested in further reading or want to know where the poster is getting their info from:
Just how much of the Wehrmacht was dirty?
The gist of it is the Wehrmacht was not only aware of the atrocities the Nazis were committing, but were active participants and facilitators of those atrocities.