Consisting of a minimum of three Sith–Imperial attack ships, the bomber squadron known as Quad Victor fought for Darth Krayt's Galactic Empire within the Navy during the time of the Second Imperial Civil War. In the year 138 ABY, under the command of the Sith Lord Darth Azard, Quad Victor was sent from the Pellaeon-class Star Destroyer called War Hammer with the purpose of deploying containers filled with viral spores into the oceans of the planet Da Soocha. These viral spores then infected the planet's oceans, ultimately killing all living things on Da Soocha.
During the Second Imperial Civil War, Quad Victor served as a bomber squadron for Darth Krayt's Galactic Empire's Navy. This squadron, comprised of at least three Sith–Imperial attack ships, was based on the Pellaeon-class Star Destroyer War Hammer in the early part of 138 ABY. In that year, the War Hammer, led by the Sith Lord Darth Azard and Moff Rulf Yage, journeyed to the Hutt planet of Da Soocha, which was providing refuge to Mon Calamari refugees wanted by Krayt's Empire. As a consequence, Darth Azard, through Yage, ordered Imperial forces to deploy viral spores on Da Soocha, with the intention of killing all life forms on the planet. Quad Victor, accompanied by Sith-Imperial starfighters, was dispatched from the War Hammer to release canisters of viral spores into the oceans of Da Soocha. After the successful completion of their mission, which effectively contaminated Da Soocha's oceans, the bomber squadron returned to the War Hammer.
The single Star Wars Legends appearance of Quad Victor occurred in Legacy (2006) 48, a comic released by Dark Horse Comics on May 26, 2010.