From the campaign:
The INFERNO expansion book and card deck is the first major expansion in the Hell Dorado universe. The greatest war of Hell has escalated to new heights of destruction as the demon Legions under command of the Fallen Angel Abezeth rise to eradicate the upstart invaders from Lucifer's realm.
The INFERNO expansion book includes 48 new profiles across all six Hell Dorado Factions. This full color book will also feature: New Scenarios, new battlefields, and new terrain types to make your games more exciting than ever before. Hell Dorado: Inferno will give players more army strategies, more game variety, and more of the miniatures that make it one of the best looking miniature games around. The expansion also includes a card deck for all the units that are included in the book for use in the game with your models and as quick reference of your opponent's forces.