Apocalypse Therory

Anyone notice that there were 4 stasis pods in the Engineers ship...4...like the 4 horseman of the apocalypse! Perhaps the cave paintings were a warning, not an invitation "the end will come from here" sort of scenario. Which would explain why the last Engineer was so suprised to see us, and ultimatley murderous. i wonder if his choice to kill Weyland with Davids decapitated head was subtext, and why did he look at David with a sense of understanding right before ripping him in two. Then again, maybe apocalypse wasnt there motive. The black goo didnt kill humans, it changed them. In to what seems to be a bit skectchy, killer zombie prototypes that are bullet proof! WTF!