[Source] The HH-12 rocket launcher was a model of black-colored missile launcher used by the Special Forces of the Alliance to Restore the Republic during the Galactic Civil War against the Galactic Empire. In the year 0 BBY, the Rogue One special forces unit brought HH-12s with them on their mission to steal the plans for the Empire's Death Star superweapon from the Citadel Tower on the planet Scarif. The former Guardians of the Whills Baze Malbus appropriated one of the launchers to use on an All Terrain Armored Cargo Transport attacking Alliance forces, but the weapon was not strong enough to penetrate the walkers armor.