A squad of death troopers had the mission of securely moving a substantial kyber crystal originating from the Jedha system. Their destination was the Tonnis sector, where they were to deliver the crystal via freighter to an Imperial I-class Star Destroyer commanded by Captain Slavin. However, the rebels Saw Gerrera, Sabine Wren, Ezra Bridger, and the droid Chopper infiltrated the freighter. These rebels seized control of hold six, the location of the crystal, which compelled Commander DT-F16 to command her squad's withdrawal. DT-F16 was the only member to successfully retreat, as the rebel intruders overcame the rest of the squad. Subsequently, Saw Gerrera performed an act of sabotage on the crystal, leading to its destabilization. As the crystal detonated, the rebels made their escape, resulting in the destruction of both the freighter and Slavin's Star Destroyer. This explosion resulted in the demise of Slavin, as well as DT-F16 and her entire squad.