Dakinor

Dakinor is a gas giant surrounded by an orbiting shell of asteroids caught in its vast gravity. The planet itself is uninhabitable, but its asteroids are being fought over by the Astra Militarum and a host of fanatics following a planet-wide death cult calling itself the Gilded Torment.

The Torment has absorbed almost the whole population, and has daughter cults on many worlds of the warzone, which task their followers with joining the struggle on Dakinor.

The Torment's goal appears solely to cause and suffer violent death in the name of the Emperor, who is worshipped in such a debased and vile form that all followers of the Torment have been declared Excommunicate.

Few in the Imperial Guard have much doubt that the Tau have somehow created the Torment, an impression hardly reduced by the kroot mercenaries appearing in the employ of the Torment.

Whatever the Torment really wants, the fight against the cult is a bitter and hateful one. The Imperial Guard mounts asteroid-hopping operations where each new planetoid is assaulted in lethal thin-atmosphere, low-gravity conditions.

The leaders of the Torment are unknown, but they must exist, and are actively hunted by Imperial intelligence officers across the warzone.