
Often entire companies of Guardsmen turn to Chaos, and take with them their vehicles, such as the and Leman Russ.

Often it is traitor units of the Imperial Guard that make up the bulk of the Lost and the Damned, providing the firepower and led into battle by mighty Aspiring Champions - Space Marines who turned traitor millennia ago during the Horus Heresy.

They consist of the scum of the Galaxy - traitors, heretics, cultists, mutants and other horrors too numerous to comprehend, such as the insane Chaos Spawn. In the table-top wargame Warhammer 40,000, The Lost and the Damned are part of the forces of Chaos.
