Argust
Argust was an Imperial Fist, who took part in the Horus Heresy's Siege of Terra.[1]
History
He was later among the Imperial Fists[1] that the Legion's Primarch, Rogal Dorn, commanded as part of the Emperor's Teleportation boarding attack upon the Sons of Horus' flagship, the Vengeful Spirit.[2a] They were tasked with killing the traitorous Primarch Horus, in order to save Terra and the Imperium, but due to Horus' machinations, the Emperor's boarding party was separated from each other.[2b] Worse still for the Imperial Fists aboard the Vengeful Spirit, Dorn had also been torn away from them[2c] and so the Huscarl Diamantis took command of the Legion's forces. However the Imperial Fists would all be killed, after they were swarmed by Horus' forces and their remains were later found by a grief stricken Rogal Dorn, who swore to avenge their deaths.[1]