world war 1 and nazi stormtrooper main tactics were infiltration

" The term Sturmabteilung predates the founding of the Nazi Party in 1919. Originally it was applied to the specialized assault troops of Imperial Germany in World War Iwho used Hutier infiltration tactics. Instead of large mass assaults, the Sturmabteilung were organised into small squads of a few soldiers each. The first official German Stormtrooperunit was authorized on 2 March 1915. "

https://en.wikipedia.org/wiki/Sturmabteilung