I ' m last person alive AMA <| sep |> Let ' s assume for fun that it isn ' t immediately destroyed by the immense dakka of Sol for being a suddenly appearing ship with no codes . If it ' s manned , they meet and at first things go well , then something tips off the Inquisitor in charge that these guys have different beliefs about the Emperor , more than is allowable . Also maybe they know some dirty secrets that they shouldn ' t they get killed , and a few survivors get tortured for information . If it ' s unmanned it ' ll probably be agonizingly slowly inspected by the Mechanicum . They might even find something useful 800 years from now perhaps even a useful new nut and bolt size ! But really they ' re too conservative to go looking for anything really useful . Anything with the slightest hint of being interesting will be melted down , just to be careful . All in all the IoM is far too paranoid to let a suddenly appearing ship in the seat of their power be actually useful . They would assume it was some kind of trap , and react accordingly .