Remorseless

After a gruelling siege, the Iron Warriors scent victory over their eternal enemies the Imperial Fists. Alongside their grand battalions is a host of Traitor Guardsmen - Skaranx is unique amongst their number, a killer of Angels. As he stalks his singular prey, he encounters Space Marines the likes of which he has never seen before. Remorseless, these warriors are beyond life and death. They are damned and so, he realises chillingly, is he...

A Legion of the Damned short story by Josh Reynolds.