Revenge Upon Oritol IV

The Revenge Upon Oritol IV was a campaign of vengeance carried out by a Word Bearers Chaos Warband against the Hounds of Chaos for their betrayal, following their flight from Terra at the end of the Horus Heresy.

History
Seeking to avenge their fallen brothers, a Word Bearers Warband fell upon the Hounds of Chaos who had been pillaging the prison world of Oritol IV. Under the leadership of Vvulf Värmodsson, the Hounds overwhelmed the Word Bearers forces and forced all of their remaining cultists and Heretic Astartes to join them before hastily leaving the planet in fear of the coming Imperial forces.