"Savredon Val knelt in silent contemplation before the alter in silent contemplation, his open eyes – as wholly black as the darkness that enveloped him – fixated upon the point where he knew the small statuette of the Emperor to be. Surrounded by naught but the inky blackness of the dark, clad in nothing more than a loincloth, carapace ports and overdeveloped musculature exposed to the cool atmosphere of the warships chapel, the veteran of the Raven Guard inwardly contemplated his current predicament.

They had come to him several months ago when he was deployed on Herada, cousins in black they were but not of his own Chapter, among them were scions of the Lion, of Russ and of noble Sanguinius, holding forth before them a great honour – one that he was neither sure he warranted or wished to accept, the shining and inscribed silver pauldron sat even now in the corner of the chapel awaiting his attention.

For three centuries he had fought against the enemies of Mankind, of his absent progenitor and of his ultimate creator, wading waist-deep through the innards of Ork, Tyranid and Eldar alike to bring then low in the eyes of his superiors and Mankind at large. Now he had been selected join the elite of the elite, the near-mythical Deathwatch, xenos killers par excellence, bringing his skills in stealth, guerilla warfare and striking from the shadows to the fore as part of a newly assembled Kill-team.

So this was the path he was set upon, that he would be required to follow until victory or death, Victorus aut Mortis indeed."

We know he's an expert in stealth/guerilla combat, has three centuries experience, is part of the Raven Guard and has previously fought against multiple xzenos threats. That's really all we are required to know outside of the IC RP.