Cato Sicarius - Resurrection of Guilliman and the Terran Crusade: In 999.M41 the Ultramarines Primarch Roboute Guilliman was resurrected on Macragge through the efforts of the Celestinian Crusade made up of the survivors of the fall of Cadia and their allies among the Aeldari Ynnari.As Guilliman immediately moved to reclaim leadership of both the Ultramarines and his former stellar empire, Captain Sicarius played a key role in the Primarch's campaign to liberate the worlds of Ultramar from the massive assault by the forces of Chaos that was part of the 13th Black Crusade.But the war across Ultramar was still ongoing when Guilliman realised that his true duty lay beyond the boundaries of Ultramar -- he had to defend the Emperor's faltering Imperium. To this end, Guilliman announced that he would undertake the Terran Crusade through the growing Warp activity that was increasingly disrupting travel and communications across the galaxy to reach the Imperial Throneworld.There, he would meet with his father the Emperor of Mankind for the first time in ten standard millennia and ask for guidance.As such, Guilliman gathered a select force of Battle-Brothers from the 1st, 2nd and 3rd Companies of the Ultramarines to accompany him to Terra, and gave the honour of their command to Cato Sicarius. He further requested that Grand Master Aldrik Voldus and the Grey Knights of the 3rd Brotherhood join their Crusade.Others pledged their aid to the Primarch's cause, including the assembled strength of the Ultramarines' Primogenitor Chapters, and the Emperor's Champion Marius Amalrich and his Black Templars brethren. Saint Celestine, the Inquisitor Katarinya Greyfax and Archmagos Dominus Belisarius Cawl also accompanied the Primarch -- whatever aid they or the military forces under their command could provide the Primarch would be gladly given.Guilliman gratefully accepted all offers of aid before commanding Marneus Calgar, Chief Librarian Varro Tigurius and Captain Severus Agemman to remain and lead the reconquest of Ultramar.During the Terran Crusade, Sicarius was given the honour of serving as the commander of the Primarch's Victrix Guard, an elite formation of Ultramarines Astartes chosen by Guilliman after his resurrection to accompany him on the Terran Crusade.Hand-picked by the Primarch himself to act as his bodyguards and diplomatic envoys, the Victrix Guard seek to excel in every aspect of battle and statecraft alike. Veteran Marines with countless standard centuries of combat experience between them, the Victrix Guard advance fearlessly into battle with their Bolters thundering and their heads held high.At their head strides a band of Ultramarines Honour Guard led by none other than Sicarius. A true gathering of courageous heroes, the Victrix Guard are more than capable of cutting their way through entire armies of foes, heaping their bodies in gory mounds for the enduring glory of Ultramar and the ever-lasting realm of the Emperor Himself.Through the course of the Crusade, Sicarius' combat prowess and unwavering faith aided the Imperial forces of the Crusade in all their trials and tribulations in the Warp rift known as the Maelstrom, where they had been cast by a great sorcerous ritual cast by the Daemon Primarch Magnus the Red.While trapped within the Maelstrom the Crusade fleet came upon a world of black marble and bloody seas. They struck hard and fast against several strongholds of the piratical Renegade Space Marines called the Red Corsairs, eliminating outlying enclaves before finally laying siege to a fortified palace upon a claw-shaped headland above booming, gory waves. While Archmagos Cawl coordinated the siege, Greyfax and Sicarius led a daring raiding party that threw open the palace's main gates and sealed the Heretics' doom.The survivors of the Terran Crusade finally arrived in the Sol System at Luna through the Webway after being freed from imprisonment in another Blackstone Fortress belonging to the Red Corsairs. Following the Crusade's rescue by the Fallen Angel Cypher and a troupe of Harlequins, Sicarius was one of the few Imperials to survive the Terran Crusade.After aiding in the defeat of the forces of the Thousand Sons Traitor Legion and Magnus the Red on Luna, Sicarius and her allies were finally ferried to the Imperial Palace on Terra.There, before the Eternity Gate of the Inner Palace leading to the throne room of the Emperor where Guilliman would meet his father for the first time in ten standard millennia, Sicarius took up his post with the Victrix Guard to await their master's return.Guilliman emerged a solar day later from the Palace and was soon restored to his former position as Lord Commander of the Imperium.As Guilliman prepared to launch a massive counteroffensive against the gathering forces of the Ruinous Powers known as the Indomitus Crusade, there was no doubt that Cato Sicarius and his fellow Battle-Brothers would stand at their Primarch's side and face the enemies of the Emperor.