"Who made that man a gunner?" "I did, sir! He's my cousin!"
Obergefreiter Adolf "Arshloch" Schwerke is a machine gunner serving under Hauptmann Messler. He isn't very good at his job. Name is a reference to Spaceballs ("Arschloch" meaning "asshole" in German), while the character is basically a squirrel version of the cross-eyed Nazi machine gunner in the 1966 French comedy The Big Runaround - http://www.imfdb.org/wiki/Big_Runaround,_The#MG42