Editing Ferrus Manus (section)

===Great Crusade===
When the Crusade began and Ferrus met [[Fulgrim]] of the [[Emperor's Children]], the two didn't get on well initially. Ferrus thought Fulgrim was a massive ponce, and Fulgrim likened Ferrus's face to a Gorgon (hence the title). This all culminated in a competition between the two beneath Mount Narodnya, where each had to forge the best weapon that he could. After three months, Fulgrim forged an ornate warhammer, while Ferrus made a big blingy sword. After praising each other for their craftsmanship, the two exchanged weapons and became best bros for life (in Ferrus's case, quite literally).

Cuddly and friendly, however, Ferrus was not. To the people of Medusa he was a grim figure who took warriors into the crypts of the forbidden polar zone to fight archeotech nasties, and otherwise offered them weaponry and told them to fight to ensure they remained strong. Once he met his Legion, he performed a dramatic ''volte-face'' on interfering in Medusan politics. Which is to say he went from non-intervention to "Legionaries, take over their Clans. Btw they'll only understand if you do it really violently." Nonetheless there was [[Autek Mor|that one guy]] who took that a little far, wiping out a Clan that had gone rogue and claiming their crawler for himself.

As far as military doctrine went, Ferrus wasn't crazy like Angron or cruel like Curze, but he was pitiless, perhaps even more so than Russ or Horus. On the battlefield itself he was the kind of guy who could smash straight through the legs of a Reaver-sized Titan-analogue (a barely disguised AT-AT homage). And Angron thought he was tough holding up a Warhound. Bless.

Like Vulkan, he made a point of forging gear for most of his brothers, although Vulkan was a bit uncomfortable with Ferrus' way of punching metal into shape and didn't use his dragon-headed flamer until the Heresy broke out. Examples of his work include Horus' sword (which Horus favoured until the Emperor gave him ''Worldbreaker''), ''Fireblade'' (the aforementioned sword made for Fulgrim), and Lorgar's mace ''Illuminarum''.

Despite his rigidness and temper Ferrus could be reasonable. When he heard that the Emperor was going to retire from the Great Crusade and leave one of the Primarchs in command; Ferrus Manus decided that it had to be him. He tried to prove the point by leading a joint force of [[Iron Hands]], [[Emperor's Children]], [[Thousand Sons]] and [[Ultramarines]] into battle against a technologically equivalent human empire that had been causing the Ultramarines some problems; Ferrus figured that he could take command of the campaign and be done with it before Guilliman showed up with the rest of the XIIIth legion to finish the job. Unfortunately he lost his cool after his enemies tried to sue for peace then attempted to assassinate him. Deciding that he didn't have the patience trying to fight in the same manner as his brothers, he laid the world to waste, demolishing its population and its infrastructure. Guilliman was pissed when he finally did show up since the world could have become a tremendous asset to the Imperium, but by that point Ferrus Manus had decided he was better at being a conqueror rather than a leader and chose to stand back and wholeheartedly support whoever did get promoted to Warmaster.

Despite his abrasive nature, some of his brothers appreciated him. Guilliman considered him to be one of the "dauntless few", along with Russ, Dorn, and Sanguinius. Humourously, when Fulgrim told Ferrus that Guilliman actually did consider him to be one of the greatest Primarchs among them, Ferrus responded that the thought was not reciprocated (it was, but Ferrus was too stubborn to say so).

Ferrus constantly wanted to compare himself to his brothers, turning everything into some kind of competition. He built an arena on his flagship that outsiders figured was for dueling dreadnoughts, but was actually for him to spar against other Primarchs, though was disappointed that his brothers were reluctant to test themselves against him. Even offering Vulkan a better weapon than the '''Fireblade''' he forged for Fulgrim didn't get him the scrap he wanted. No doubt this was part of his zealous drive to test his own limits, as when an enemy psyker sifted through his mind to find moments of weakness to use against him, he only found that Ferrus actually cherished his defeats since they allowed him the room to grow, and so he actively sought greater challenges to throw himself against. He even figured that if he was to get a second duel against the Emperor, the outcome would be different.