The Horus Heresy: Legiones Astartes - Crusade Army List is the first army book released as part of Forge World's Horus Heresy Series of campaign and army books that takes place during the Horus Heresy. The Horus Heresy: Legiones Astartes - Crusade Army List contains the complete non-Legion specific unit profiles, special rules and wargear for a Legiones Astartes army to be used during a Battles in the Age of Darkness expansion game. This book only contains the units that were released within the first three Horus Heresy Series books, and as such is considered outdated and is no longer in print. The updated version is the The Horus Heresy: Legiones Astartes - Age of Darkness Army List. The regular edition and the collector's edition covers are both shown.