War of the Beast - Battle for Terra: After the audacious raid by the Aeldari on the Imperial Palace, the Chapters of the "Last Wall" arrived in-system. This powerful combined fleet of Imperial Fists Successor Chapters were comprised of 20 Battle Barges and Strike Cruisers carrying 2,800 battle-brothers from the Black Templars, Crimson Fists, Excoriators and Fists Exemplar Chapters. The newly arrived fleet emerged directly above the Ork Attack Moon in Terra's orbit. Led by High Marshal Bohemond of the Black Templars and Chapter Master Koorland, the last surviving Imperial Fists Astartes, the Astartes were finally able to finagle aid from the reluctant Martian Priesthood. Faced by such a powerful force, Fabricator-General Kubik agreed to assist the "Last Wall" fleet by sending a fleet of Basilikon Astra, 5 regiments of Skitarii and 7 cohorts of the Legio Cybernetica.Once their forces were consolidated, the combined Imperial fleet launched an assault against the Attack Moon. Utilising Cyclonic Torpedoes, they were able to disable most of the weapons on the Attack Moon's surface. However, the Orks were still able to utilise their deadly gravitic whip technology and managed to inflict severe losses on the Imperial forces. With the Orks preoccupied with the attacking fleet, the "Last Wall" Chapters and their Mechanicus allies launched a near-simultaneous attack on the Attack Moon's surface. These forces were comprised of the Chapters' veteran elite arrayed in deadly Terminator Armour supported by battle tanks borne by several Thunderhawk Transports, alongside their deadly Skitarii allies and formidable Battle-Automata of the Legio Cybernetica. The Imperial forces were soon engaged in an all-out pitched battle against thousands of Orks. During the fighting, the void-battle slowly turned in the greenskins' favour due to their devastating gravitic whip ability, but this was soon overcome by the timely arrival of the Iron Knights Chapter, which quickly turned the tide of battle. Successfully disabling the Attack Moon's teleportation portal, the greenskins could no longer receive reinforcements. With a large portion of the Attack Moon's surface left in shambles, the exhausted Imperial forces made a hasty tactical withdrawal. In the closing stages of the epic battle, the Iron Knights Chapter Master, Malfons, sacrificed himself to cover the escape of the fleeing Imperial forces, as he fought a massive Ork Warboss the size of a Dreadnought.In the battle's aftermath, a tense meeting was held between the "Last Wall" Chapter Masters and the Lord Commander of the Imperium, Udin Macht Udo, who had audaciously claimed credit for the Imperial victory against the Orks. The Lord Commander then proceeded to scold the Astartes, claiming that the unification of Imperial Fists Successor Chapters into a Legion-sized forces as borderline heretical. He also condemned them for their unannounced arrival over the Throneworld and ordered the Chapter Masters to break up their fleets immediately. Udo also ordered that the destruction of the Imperial Fists be kept from the general public, as to countenance such a disaster would be unthinkable and the masses of Terra would devolve into outrank panic. Most outlandish of all, the Lord Commander ominously demanded that no further attacks would be made against the Ork Attack Moon as Fabricator-General Kubrik demanded it to remain intact for some unknown purpose. Though enraged by the impertinent and outrageous demands of the Lord Commander, Koorland cautioned his brothers to maintain the Emperor's vision and to comply with the chairman of the Senatorum Imperialis.Meanwhile, at that exact moment, on the world of Dzelenic IV, the Black Templars Crusade force led by Marshal Magneric and the Iron Warriors' Warsmith Kalkator came to uneasy truce, formating tentative alliance in the face of the mutual threat of the invading Orks. For the first time in over 1,500 years, not since the bygone era of the Great Crusade had the sons of both Rogal Dorn and Perturabo fight side-by-side.In the meantime, back on Terra, the outspoken High Marshal Bohemond expressed his disdain for both the squabbling and weak-willed High Lords of Terra as well as the Lord Commander. After Lord Commander Udo passed a motion to ban the Inquisition from the Senatorum, Koorland finally came to the realisation that the squabbling and weak-willed High Lords proved too ineffectual to achieve victory. The "Last Sons of Dorn" personally led a political coup in cooperation with several members of the Senatorum Imperialis, including Grand Master of Assassins Vangorich, Inquisitorial Representative Veritus, Lord Inquisitor Wienand and Grand Provost Marshal of the Adeptus Arbites, Vernor Zeck. Realising they could not oppose Koorland, the rest of the High Lords eventually fell in line and unanimously approved the Imperial Fists Chapter Master's appointment as the newly instilled Lord Commander of the Imperium.