Brazen Minotaurs - Notable Campaigns: Battle for Empalion II (Unknown Date.M41) - When the Raven Guard laid siege to an Iron Warriors fortress on the world of Empalion II the task seemed hopeless, until a force of Brazen Minotaurs arrived to assist their cousins in their hour of need. The Brazen Minotaurs sacrificed an entire company to distract the Iron Warriors as a decoy, allowing the Raven Guard 4th Company to infiltrate the Iron Warriors fortress and destroy it from within.Karos Campaign (Unknown Date.M41) - When the Ork forces of Warlord Grakka invaded the Imperial Ice World of Karos, the Brazen Minotaurs' Chief Librarian Theseon accompanied the 3rd Company commanded by Captain Daed to aid it after the Astra Militarum regiment previously sent to Karos was easily defeated by the world's harsh climate and the Orks who were immune to it. Once on Karos, the company learned the tactical situation from Lieutenant Ariseth, the highest ranking officer of the Astra Militarum regiment still left alive. Daed used this information to come up with a plan to attack Grakka's base near several venting towers. The warlord did not know that the towers led to a series of abandoned bastions and that the destruction of one would cause a series of explosions that would destroy the entire base and the Orks along with it. Daed's plan called for the  3rd Company to deploy using Thunderhawks near the base and launch a direct attack on the venting tower that Grakka used as his command post. But the company was unlikely to be able to complete this plan because it was heavily outnumbered by Grakka's Orks. Theseon was deeply troubled by Daed's plan for the company, as he knew that Grakka and Daed had clashed once before on Praxis, a battle in which the warlord had left him severely wounded and the captain had nursed a deep grudge against the Ork ever since. The chief librarian worried that Daed was letting his hatred blind him to the likely defeat of the company if they followed his plan. Once Theseon sensed an Ork Weirdboy present in Grakka's forces, he realized that the assault was even more likely to meet opposition it could not overcome. When the company had met with Lieutenant Ariseth, the Guardsman told them of the trouble his regiment had encountered when attacking Grakka's forces. It had seemed like the Orks knew exactly what attacks the Imperials were planning, no doubt because of the psychic ablities of the Weirdboy. Theseon told Daed of the presence of the Weirdboy and his other concerns about Daed's judgment, but the captain was undeterred and simply stated they needed to launch their attack even sooner with the new information. Realising he could not dissuade Daed from the assault, Theson secretly told a small number of the company's Astartes of a new plan of attack he had devised, which was to be kept secret from Daed. When their Thunderhawks neared the Ork base, Theseon surprised Daed by giving the order for their Thunderhawk to attack the unguarded venting tower the chief librarian sensed contained the Weirdboy, instead of landing near the heavily defended tower that contained Grakka. Once the Thunderhawk's attack collapsed the tower, it began an explosive chain reaction that completely destroyed Grakka and the majority of his forces in the interconnected bastions. Afterwards, Daed angrily accused the chief librarian of disobeying his orders, though the captain relented when Theseon told him it had been necessary. Daed's intense anger had allowed the Weirdboy to easily read the captain's mind and had compromised the attack plan he had devised. Theseon told Daed that with the death of Grakka the psychological scars caused by Grakka could now heal and the captain agreed Theseon had done what was necessary. After the Brazen Minotaurs crushed the remaining Ork forces on Karos, Theseon told Daed of the embattled Sargassion Reach. The 3rd Company next moved to confront the Chaos Lord Gideous Krall and his Nurgle-worshipping warband of Heretic Astartes, Empyrion's Blight.Mission to Kasharat (Unknown Date.M41) - During the war for the Sargassion Reach the Brazen Minotaurs Chief Librarian Theseon was captured by the forces of the Empyrion's Blight Chaos Space Marine warband and brought to the corrupted Mortuary World of Kasharat to be broken. A small team of Brazen Minotaurs mounted a rescue mission but would likely have failed without the intervention and assistance of a squad of Raven Guard Astartes led by Shadow Captain Aremis Koryn who deployed to the surface of the Mortuary World in advance of the Brazen Minotaurs' rescue mission and cleared the way for them. Though both Chapters suffered casualties, the mission was ultimately successful and a debt between the two Loyalist Chapters was repaid.Battle for Fortane's World (Unknown Date.M41) - The Sargassion Reach was on the brink of destruction at the hands of the foul Nurglite Heretic Astartes warband known as Empyrion's Blight when the Fortress World of Fortane's World fell to the machinations of the Archenemy. Rather than having fallen to strength of arms the bastion fell to corruption from within. Even worse, the eccentric orbit of Fortane's World would bring it within a matter of days within the outer limits of the densely populated neighboring star system of Kandoor. Unwilling to allow the sickening plague of the Traitor Legions to infest another star system, the Brazen Minotaurs' 3rd and 5th Companies laid siege to the bastion of Fortane's World, determined to cleanse it of the Traitors before they could stage an invasion of the Kandoor System and doom billions to plague and death. With time running out and the siege protracted, the enemy was able to swamp the Brazen Minotaurs with endless hordes of corrupted Imperial Guardsmen, delaying them until the planet's orbit reached its zenith and entered its neighboring system. Determined to aid their fellow Chapter, a strike force from the Raven Guard's 4th Company led by Shadow Captain Aremis Koryn came to the Brazen Minotaurs' aid. Three squads made planetfall and though they suffered significant casualties, the Raven Guard was ultimately able to infiltrate the bastion and open it for bombardment from orbit, destroying a massive Chaos army and protecting the colonists of the Kandoor System.