In the campaign there are often multiple objectives which will complete a mission depending on which one a player chooses to complete, they will become more or less corrupted. New to Dawn of War II: Chaos Rising is the Corruption System.
The campaign marks the return of the Blood Raven heroes from the previous game, the Chaos Lord Eliphas the Inheritor from Dark Crusade, Derosa as the new Planetary Governor of Meridian, and the heretic Vandis. 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.