Here is an overview of what is contained in Mark of the Xenos :
Conclusion
: Rules for Massed Battles , new Horde traits, and "Turning Points" for high-stakes encounters. Warhammer 40K - Deathwatch - Mark Of The Xenos.pdf
Given that the Jericho Reach is a warzone actively threatened by the Ruinous Powers, this chapter is essential. It provides stats for standard Chaos Space Marines, cultists, and Daemons. Notably, it includes high-level Greater Daemons (such as Bloodthirsters and Keepers of Secrets) capable of challenging an entire squad of Deathwatch veterans. Here is an overview of what is contained
Key sections include:
Deathwatch: Mark of the Xenos serves as a detailed bestiary and thematic exploration, framing alien threats as fundamental, existential horrors to the Imperium of Man. It positions the Deathwatch as monastic, incorruptible hunters tasked with analyzing these dangers, shifting the narrative focus to asymmetrical warfare and the psychological impact of fighting the alien. Notably, it includes high-level Greater Daemons (such as
