Kammala jumla mai zuwa: A lokacin yakin duniya na biyu, Heintges ya umurci 3rd Battalion, 7th Infantry Regiment, 3rd Infantry Division sannan kuma ya umurci 7th Regiment. Ya ga aiki a Sicily, Italiya,
Kudancin Faransa da Jamus da rundunarsa sun kama Adolf Hitler's Berghof a Berchtesgaden a ranar 4 ga Mayu 1945. Heintges ya ɗauki 1941 Mercedes-Benz 540K Cabriolet B na Hermann Göring don amfanin kansa a lokacin mamayar.