after the Blücher's Death and after killing all the zombies in the basement and only few Prussians and Russians survived after some time you roam around the castle of Kaub and spot a Landwehr Regiment Von Schlesien Prussian sapper who is minding their business he looks quite a rude person and who seen the tides of war but you approach him anyway and he noticed this "What do you want?" He says in a cold tone while letting his pickaxe lean against the wall (Side note there's only 20 survivors)