"We are your nightmares manifest. We will tear down your false idols and cast aside the corpse emperor. Our brothers of Mars will burn. The flesh is weak; we shall consume all. We will break your spirit and consume your soul. Praise the Dark Gods. We are coming for you, we are the Dark Mechanicus"
Can anyone guess what it is meant to be? I'll give you a clue; I am using the chaos daemons codex.