The Space Marines of the Horus Heresy adopted the Rapier platform for their own support firepower, and deployed talons of dreadnoughts for long-range fire and close combat. The Legiones Astartes Support kit contains 24 miniatures, including Leviathan Dreadnoughts with storm cannons and cyclonic melta lances, Deredeo Dreadnoughts with Anvilus autocannon batteries and Hellfire plasma cannonades, Rapier batteries with quad launchers and laser destroyers, and Tarantula platforms with lascannons and Hyperios missile launchers.

Games Workshop plastic miniatures are sold unpainted and will require assembly.