Chaos Rising is set one year after the events of Dawn of War II and the defeat of the Tyranid invasion (as well as the Eldar and Ork forces) of sub-sector Aurelia. The campaign marks the return of the Blood Raven heroes from the previous game, the Chaos Lord Eliphas from Dark Crusade, Derosa as the new governor of Meridian, and the heretical Vandis. New to Dawn of War II: Chaos Rising is the Corruption System. (wikipedia.org).