The Hive Lord leads the swarm in their campaign to rebuild the psychic link with the main Tyranid fleet and finally consume Sub-Sector Aurelia in its entirety. When organized by the Hive Mind they are a lethal force that strikes system after system, stripping all life from planets in their path.
Cut off from the main Tyranid fleet, the Tyranids in Sub-Sector Aurelia are a scattered and disorganized nuisance at the start of their campaign in Dawn of War II: Retribution.