The Children of Atom are as fanatical as ever, raising serious
doubts over humanity's ability to live independent of blind faith (those of you familiar with Stephen King's The Mist will notice striking similarities), and the leader of the synth colony wastes no time in posing some genuinely thought - provoking questions to the player about synths who may not even know that they are synths, even going so far as to make the player question his / her character's true identity.
Noah is, at his core a human, and he
doubts that
humanity should even exist anymore if someone like Tubal - Cain (who sneaks onto the ark to essentially turn the film into Air Force One for a few thoroughly unfortunate scenes, though Winstone does his best with an unfortunate situation) can exert his dominance
over much of the globe.