Games Workshop details new Custodes rules for Horus Heresy's Assault on Kol

Key points

• The new Journal Tactica, 'The Battle for the Signus Cluster: Assault on Kol,' is available for pre-order and focuses on the planet Kol in the Ultima Segmentum.
• The Ephoroi Venatari-Proconsul is a new command unit with a Weapon Skill of 6 and Ballistic Skill of 7, featuring a Venatari jump pack and options for Kinetic Destroyers or a Vaultsword.
• The Hykanatoi Proconsul-Delegate is a subordinate commander costing 80 points, designed for smaller armies or allied detachments, with a Weapon Skill of 5.
• The Gyrfalcon Jetbike Sodality profile has been updated to allow the use of the arachnus volley cannon, which offers burst and concentrated fire modes.
• The narrative background describes Kol as a world scoured by radiation and deep mines, where the 606th Cohort was corrupted by Slaanesh's influence.

Background

This release follows a September 2026 preview that introduced the Daemons of Slaanesh army list for the same supplement. The Signus Cluster conflict was previously detailed in the novel 'Fear to Tread' and the first edition of the Horus Heresy game, focusing on the Blood Angels' battle on Signus Prime. This new supplement shifts the focus to the Custodes' operations on Kol, expanding the lore of the Horus Heresy.

Why it matters

The new units provide players with more thematic options for Legio Custodes armies, allowing for the first time the fielding of a dedicated Venatari force. The lower-cost Proconsul-Delegate offers flexibility for smaller point limits, while the updated jetbike profile integrates recent plastic kit releases into the rules, enhancing the tactical depth of Loyalist vs. daemon clashes in the game.

What to watch

Games Workshop has indicated that further details regarding the Daemons of Slaanesh army list and the Imperium's understanding of daemonkind during the heresy will be released later in the week.