Chaos Terminators stand in great favour with the leader of their warband. Many of them are Aspiring Champions of Chaos who have left their brethren to elevate themselves in the eyes of the Ruinous Powers. For generations uncounted, the colossal war machines have been piloted by Nobles -- aristocratic warriors possessed of enough physical, mental and spiritual fortitude to survive the Ritual of Becoming, commune with the Throne Mechanicum at each walker's heart and thus bond with their Knight suit. Both mortal and daemonic warriors are driven to an exultant frenzy when they fight alongside the Greater Possessed, desperate to claim such eternal honour for themselves with a worthy display of brutality. Consisting of 4 to 9 Chaos Space Marines, and led by an Aspiring Champion of Chaos, Havoc Squads are used to support their brethren during an advance by laying down a withering hail of fire. This is because, unlike a possessed mortal body, these steel and ceramite shells can sustain a Daemon in the mortal universe for solar decades, even centuries. During this time, the shape of each Soul Grinder will change, as their metal body slowly becomes more similar to the true form of the Daemon possessing it.

Helbrute • Ferrum Infernus Dreadnought • Chaos Contemptor Pattern Dreadnought • Sonic Dreadnought • Berserker Dreadnought • Leviathan Dreadnought A Possessed Chaos Space Marine of Khorne, rushing through a portal to deliver the Blood God's fury. The Plague Marines have dedicated their loathsome existences to spreading corruption and decay across the universe. The Plague Fleets of Nurgle that periodically spew forth from the Eye of Terror are captained by the Plague Marines, who intend to spread Father Nurgle's Warp-spawned contagions and pestilences across the myriad star systems of the galaxy.Heretic Astartes normally belong to one of the 9 Traitor Legions that betrayed the Emperor of Mankind during the ancient civil war called the Horus Heresy more than 10,000 standard years ago, while others come from Space Marine Chapters created long after the Heresy ended that have turned Renegade. These individuals enjoy a much more symbiotic relationship with their possessing Daemon rather than one of brutal subservience and are the present-day equivalents of the ancient Gal Vorbak of the Word Bearers Legion, the first of the Space Marines to be possessed by daemonic entities. Horrors only provide mediocre support against armoured vehicles. Horrors are described as constantly churning balls of raw Chaos energy that are able to take on any form they desire. Chaos Lords are so powerful as to be able to bind the other forces of Chaos to their will, although this often brings a dangerous position as advancement among the forces of Chaos is commonly achieved through the death or murder of another Chaos Lord or Champion.

Some pledge themselves fully to the service of their Dark Gods, allowing themselves to be possessed by Daemons. They become willing hosts to these creatures of the Immaterium. It is exactly this unreliability that led Abaddon the Despoiler to call for the creation of the Defiler as a replacement for the Traitor Legions' original Dreadnoughts. Chaos Dreadnoughts' weapons are configured in the same way as Imperial Dreadnoughts but have no specific designations. Those warriors who commit the most notable acts of monstrosity attract the attention of more powerful beings still -- those named as Heralds by the Dark Gods. Towering over even their fearsome kin, Greater Possessed are not only stronger and far more savage, but radiate an unholy charisma that even pure creatures of the Warp recognise.Dark Apostles still carry their ritual Crozius Arcanum as they did before their fall, although the resulting Accursed Crozius have long since been corrupted and debased into deadly icons dedicated to the Chaos Gods themselves. In its long career, the Ordo Malleus has encountered Orks, Squats, Hruds and many other types of beings serving as Daemonhosts. The only exceptions to date are the T'au and the Tyranids.