Space Marines - Loyalist Legions: Those Astartes Legions that remained loyal to the Emperor during the Horus Heresy were known as the "Loyalists." They were subsequently each split up into smaller Chapters of only 1,000 Space Marines each during the so-called Second Founding, one of which retained the name of the original Space Marine Legion.Chapter NamePrimarchHomeworldSummaryDark AngelsLion El'JonsonCaliban (Destroyed)The Dark Angels refer to themselves and their Successor Chapters as the Unforgiven. Their first two companies are elite forces known as the Deathwing and the Ravenwing. Although unknown to most of the Imperium, including the majority of the Chapter, some of the Dark Angels turned to the service of Chaos during the Horus Heresy. These individuals are known as the Fallen Angels and the Dark Angels and the Unforgiven have vowed never to rest until all of the Fallen have repented or been killed in the Emperor's name.White ScarsJaghatai KhanMundus PlanusThe White Scars have a nomadic horse barbarian culture similar to the ancient Mongols and prefer fast-attack operational doctrines. They are also known for being specialists in the use of bike squads on the battlefield, using them as mechanical steeds.Space WolvesLeman RussFenrisThis particular Chapter is known for following its own path and being highly unorthodox in organization and tactics - often contrary to the Codex Astartes. They are feral in appearance and are often adorned with wolf pelts and wolf tooth necklaces. They are one of the few Space Marine Chapters who do not follow any of the rules for Chaoter organization set out in the Codex.Imperial FistsRogal DornTerra / PhalanxThis Chapter is renowned for being the greatest siege specialists in the Imperium of Man. They also are engaged in a bitter and ancient feud with the corrupted Chaos Space Marines of the Iron Warriors Traior Legion who were once considered the greatest creators of static defences in the galaxy.Blood AngelsSanguiniusBaalThe Blood Angels suffer from the Black Rage and the Red Thirst, those that succumb to the Black Rage and the Red Thirst are put into the specially-created Death Company as the crazed battle-brother sees only the last moments of his Primarch Sanguinius' death at the hands of Horus and enters a killing frenzy during which he will literally drink the blood of his foes. The Blood Angels prefer the usage of jump packs and close combat.Iron HandsFerrus ManusMedusaThe Iron Hands are devotees of the Cult of the Machine of the Adeptus Mechanicus. There is an unusually high incidence of voluntary cybernetic modifications to the bodies of Iron Hands Astartes as a result of their devotion to the Omnissiah. All neophytes of the Chapter have their left hand removed and replaced with a cybernetic model.UltramarinesRoboute GuillimanMacraggeThe Ultramarines Chapter is known as the model for all Space Marines due to their exemplary discipline and loyalty to the Emperor of Mankind. As the largest Legion at the time of the Second Founding they produced the largest number of Second Founding Chapters. This Chapter's elite 1st Company was wiped out by the Tyranids during the legendary Battle for Macragge of the First Tyrannic War; it has taken a century to fully reconstitute that company.SalamandersVulkanNocturneThe Salamaders are a technically-adept Chapter with a preference for short-ranged combat, heat-based weaponry like melta guns, and energized warhammers. They are unusually devoted to the welfare of the civilian population of the Imperium because of their own close connections to the people of their homeworld of Nocturne.Raven GuardCoraxDeliveranceThe Raven Guard specialises in hit-and-run assaults, and they prefer the use of jump packs and lightning claws. They most commonly deploy into battle from orbit using drop pods.