Caligula

Caligula is a Sabbat hive world where the Tanith First helped break Nero Hive after a daemonic storm cut the Guard’s first assault wave clean off from orbit.

Raven Guard, Royal Volpone, Raymian, and Lakkarii regiments hit the planet with Gaunt’s Ghosts. Corbec walked the western streets, marked the daemon, and handed the Navy a grid that ended the storm. Reconstruction left bandits hunting convoys between Aurelian and Calphernia until Bragg’s bait run and Marauder strikes burned them out.

This is the Ghosts’ Caligula, not the Caligari Sector. The pin stays under the Pacificus/Tempestus dual path on the Sabbat chart.