Inside this 88-page book, you'll find:

- Missions that allow you to recreate some of the most pivotal battles during the conflict, and war zones that let you bring your battles to some of the most distinctive sites that were fought over.
- Expanded army rules for the Thousand Sons, Dark Angels and Grey Knights, including Warlord Traits, Stratagems, Relics, and psychic powers.
- A new unit for the Grey Knights – the Grey Knights Chaplain – along with a set of six Litanies of Purity for them to utilize in battle.