Deathwatch

Mysterious figures who battle in black power armor, fighting with preternatural skill and dedication against the most terrible of alien creatures. Appearing without warning and vanishing as quickly as they arrived, leaving no trace of themselves or of the creatures they have fought. These are the Imperium’s most highly trained xenos fighters, known simply as the Deathwatch.
Forming the chamber militant of Ordo Xenos, the Deathwatch uniquely draws its members from across the many different Space Marine Chapters, all of which have sworn sacred oaths to maintain specially trained xenos fighters and stand ready to deploy them at a moment’s notice. These specialized warriors are drawn together as and when needed by the Ordo to combat alien menace whenever and wherever it rears its vile head. Rumour has it that Ordo Xenos maintains a number of secret fortresses at the fringes of the Imperium where the Deathwatch keeps a silent and constant vigil, ever watchful for the tell-tale signs of alien encroachment.