Carus Brom was the Imperial Guard Colonel tasked with overseeing the 37th Tartarus Planetary Defense Force (PDF) Regiment on the world of Tartarus when the Blood Ravens Space Marines arrived to deal with the Ork WAAAGH! ravaging the planet under the Warlord Orkamungus. The 37th Tartarus also assisted Blood Ravens forces throughout their time combating the force of Chaos Space Marines who were discovered to also be secretly operating on Tartarus. Brom willingly accepted commands from Blood Ravens Captain Gabriel Angelos with little hesitation, having a deep respect for the commander; however the mere presence of the Inquisitor Mordecai Toth was enough to make the veteran Colonel break out in nervous hives. It is believed Brom escaped off-planet with his remaining troops before the Warp Storm arrived that ultimately claimed the world and absorbed it into the Immaterium following the Blood Ravens' defeat of the Forces of Chaos that had been secretly operating on the world under the cover of the Greenskins' assault.
In the slightly different events on Tartarus chronicled in the novelized version of Dawn of War, Colonel Brom instead turned to Chaos and attacked Captain Gabriel Angelos during his assault on the location of the Chaotic artefact called the Maledictum. Colonel Brom was not satisfied being put down on occasion by Gabriel's orders, resulting in the corruption of Chaos finding its way into his heart. Colonel Brom was slain by the Blood Ravens along with the corrupted PDF and Imperial Guard who had turned Traitor. Only a handful of Loyalist Guardsmen survived and joined with the Space Marines and the Eldar also present on the planet in the final battle to reach the Maledictum. Brom was armed with a Power Sword and Bolt Pistol.
- Dawn of War (PC Game)
- Dawn of War (Novel) by C.S. Goto