Field armies of rumbling tanks and learn all about the development of the Legiones Astartes' mighty super-heavies in Mailed Fist, the latest Journal Tactica for Warhammer: The Horus Heresy. This 48-page softback book includes loads of background lore, new unit profiles, and the epic Leviathan Missions - game rules that let you play massive asymmetrical games featuring armoured warfare and multiplayer mayhem galore.