Gebirgskanone

The Gebirgskanone is an automatic rocket launcher featured in. According to the description, it combines the suppressive firepower of a machine gun with the destruction of a rocket launcher, turning the wielder of the Gebirgskanone into a one man Apache helicopter.

Trivia

 * The Gebirgskanone means Mountan Cannon in German.
 * The Skoda 7.5 cm Gebirgskanone M. 15 was a real gun developed around 1914.