Stormtrooper has several possible meanings:
Stormtrooper, a member of German regular army shock troops
Shock troops, commando Commando

In military science [i], the term commando can refer to an individual, a military unit [i] or a raidi ... 

s, or special forces Special forces

Special forces or special operations forces are military [i] units which are formed and trained to ... 

 in general
Sturmmann Sturmmann

Sturmmann is a German [i] phrase translating as Stormtrooper [i]. ... 

, the rank of "Stormtrooper"
Sturmabteilung Sturmabteilung

The Sturmabteilung functioned as a paramilitary [i] organization [i] of the NSDAP [i] – the German [i] ... 

, a paramilitary organization of the German Nazi Party