From Halopedia, the Halo wiki
Retrieved from "https://www.halopedia.org/index.php?title=G4H-DuSH&oldid=1113223"
The G4H-DuSH is a UNSC rocket launcher which was to be featured in Halo 3. It was never implemented in the game's code, likely because the M41 rocket launcher fills the same role. The weapon's name is L33t speak for "gah-dush", an onomatopoeia of the sound a rocket makes when it is launched or detonates.