Warhammer 40K: Laying Down The Lore
In this episode we follow the fate of those legions that fell to Chaos during the Horus Heresy. We briefly describe the events of 10,000 years for all nine before turning our attention to their evolving organisation and their Daemon Primarchs and the Arch-Warlord, Abaddon the Despoiler. We summarise the campaigns of the despoiler, the Black Crusades. We then pivot to explore the fates of a series of once loyal chapters of space marines that fall of Chaos and the reasons they did so, specifically the Astral Claws of the Badab War. Finally, we look at the innumerable Chaos Space Marine warbands that plague the Imperium at large, their structure, motivations and tactics.