As a kid, I used to love reading the Sven Hassle books! Having grown up with 2 grandfathers who had served in the Wehrmacht near the end of WW2 (and having heard their personal war stories) I found his books to be the most realistic depictions of front line life for a German soldier. Never mind the fact they are joyously entertaining! :)
Although the later books become parodies ,the early ones are very good.I read them as a teenager in the 1970s.It`s a pity a decent film has never been adapted from the novels,The Misfit Brigade as Hassel said is not good at all.
I started to read SVEN HAZEL'S ww2 warbook's back in 1972 on Russian border.
I am 71years today and I still reading them.
It's best book's I have ever read.