Admiral Quarren was hailed as a true hero of the Imperium for his masterful defence of the Space Lanes in the Cadian Sector during Abbadon's 13th Black Crusade. He is said to have been the only thing standing between survival, and utter defeat for the Imperium in the Battle of Cadia.

Currently commands almost uncontested, holding the space lanes open and offers support to units still fighting in the ground war.

Redeployed to the area are both Battle Fleet Gothic, and Battle Fleet Solar. However in doing so, this has left the Imperium over-streched dangerously thin and unable to maintain the level of operations required to hold the line at the Cadian Gate.