Tyrannic War Veteran - Conclave of Herra: In the aftermath of the Battle of Macragge, the Ultramarines were faced with the herculean task of rebuilding their most experienced body of Veteran warriors -- the 1st Company. Responsibility for this undertaking fell to Chaplain Ortan Cassius, whose hatred for the Tyranids and all they had done to the worlds of Mankind knew no bounds.Cassius petitioned Marneus Calgar for the authorisation to raise a new body of Ultramarines drawn from the ranks of those Astartes who had survived the First Tyrannic War. Only those Space Marines who had been tested like he had could truly understand the threat posed by the Tyranids.This new cadre was a departure for the Ultramarines, a Chapter for whom such non-Codex specialisation was almost unheard of.Perhaps not surprisingly, there was resistance to the recognition of Tyrannic War Veterans within the ranks of the Ultramarines. Though the Master of Sanctity himself urged the formation of such squads, many of the Chapter's Captains protested that such a unit was unsanctioned by the Codex Astartes and therefore unthinkable.Arguments both for and against the formation of Tyrannic War Veteran squads raged back and forth, but no resolution could be reached. Eventually, Marneus Calgar decided that such arguments, while providing much theoretical debate on the origins of the Codex Astartes and the intent of Roboute Guilliman, were ultimately fruitless.In order to break the deadlock, the Chapter Master decreed that all warriors of the Ultramarines could have their say upon the matter at a great conclave to be held on Macragge following the great Feast of Remembrance, where the Chapter honours those who died to defeat the Tyranids of Hive Fleet Behemoth.Ultramarines travelled far and wide to attend the Conclave of Herra and Marneus Calgar waited for as many of the Chapter's warriors to arrive as possible before beginning proceedings in the shadow of the great Primarch himself in the Temple of Corrections.Each warrior was permitted to speak his mind on the formation of the Tyrannic War Veterans unit within the Chapter and many opinions and views were aired before the Chapter Master. Chaplain Cassius and Captain Agemman of the 1st Company spoke passionately of their value, bringing a surviving warrior of the Scythes of the Emperor, Sergeant Remas, before the conclave to speak of what he had seen and learned in battle against the Tyranids.The conclave continued for many solar months, as warriors who had been unable to reach Macragge before its beginning arrived and spoke their minds on the issue. At long last, Calgar decreed that he had heard all he needed to and retired to his chambers atop the Ultramarines fortress-monastery to ponder the matter.For many solar days and nights the Chapter Master of the Ultramarines thought of the widely differing views espoused at the conclave, praying and fasting for guidance from Roboute Guilliman and the Emperor. As dawn broke on the morning of the 40th day, Lord Calgar emerged from his chambers as word reached Macragge of Tyranid creatures attacking settlements on the Cardinal World of Espandor -- monsters stranded in the Realm of Ultramar after the battles against Hive Fleet Behemoth.Calgar took this as a sign from the Emperor and declared before his assembled Astartes that the Tyrannic War Veterans would indeed become part of the Ultramarines' military structure. This new infestation would be their first trial and, should they prove successful, then all would recognise their usefulness.