what kind of reputation does himmelsstos have in the campand what angers him and causes him to threaten Paul and Albert Kropp?

Like Kantorek, Himmelstoss is in just a few scenes, but he is an important representative figure. As Paul's friends see it, Himmelstoss epitomizes the way men with little power otherwise--Himmelstoss was a postman before the war--exploit whatever power they gain in the military. Paul and company do not react well to Himmelstoss's power trip. This makes Himmelstoss even nastier.