In this expansion you'll discover arch villain Von Hölle a Bauhaus scientist who was corrupted by the power of the Symmetry and now leads a formidable cult of Heretics determined to bring down humanity from within. Players get a 7th faction - Luna PD and Freelancers to mix and match and you've got great new rules to add even greater challenges! This expansion for Siege of the Citadel will let you play out early events where the heroes of Luna City first discover the corruption of the Dark Symmetry or you can be fighting the full power of the Dark Apostle Ilian as she vies for control of Luna City whilst the Siege of the Citadel is in full swing. —description from the publisher