Betraying Sons

The Betraying Sons was the name of a lamentable campaign conducted by the Carbon Fists Space Marine Chapter against the formerly Loyalist Chapter that turned Renegade following its corruption by the Ruinous Powers, and turned upon the Carbon Fists Chapter Fleet. A vicious void battle ensued, but the Carbon Fists managed to drive off their would-be attackers.

History
While on a campaign a brother chapter turned to chaos for an unknown reason. The Traitors would assault the cruisers and barges taking down a ship while the Marines where in a state of shock. The Carbon Fists would in the end manage to drive off the attackers from their ships and leaving the sector to repair damages.