- Contains two full kill teams a brutal Ork Wrecka Krew, and cunning Astra Militarum Ratlings
- Includes a dossier loaded with new rules, missions, and background, along with 77 double-sided tokens
- Also includes Kill Zone Upgrade: Compound Siege containing walls, bunkers, and more
Beyond the walls of Hive Fissilicus, a new threat descends upon the Imperial world of Volkus – Ork Wrecka Krews advance towards the city, seeking to break through the perimeter and force entry into Fissilicus itself. Opposing them are squads of Ratlings – experts in urban combat. The explosive battle for the Undermuzzle Barrens has begun.