The Deathwatch are a widespread Chapter of Space Marines and the Imperium's greatest weapon against the manifold threats posed by countless xenos races. From their hidden bases in orbiting watch fortresses, the Deathwatch despatch carefully selected operatives to hunt down and exterminate alien presences wherever they may be found. Each of these post-human warriors is a veteran of countless battles, tithed by their original Chapter to undertake the Long Vigil with the Deathwatch, guarding against alien incursion. Only the most skilled of xenos-hunters are afforded this honour and, amongst