Tartarus

Tartarus is a Segmentum Tempestus campaign world whose Maledictum relic made it the Blood Ravens' first named war in Dawn of War. The Corribra Sector still files it as an Imperial rock, not a random hell-world named for a river.

Gabriel Angelos fought Orks, Eldar, and Eliphas here while Sindri Myr turned the buried stone into a daemon-prince shortcut. The Chapter won the ground and lost the argument: Angelos smashed the Maledictum, Tartarus paid in quakes, and later briefings still treat the planet as a warning about relics that talk back.

Tartarus still matters as the Dawn of War map the Blood Ravens cannot un-remember. Unofficial fan summaries keep the Corribra parent and refuse to merge this pin with Dawn of War III's Acheron or with Space Marine 2's Kadaku.