Originally Posted by Iceman
Even if the Hulkbuster armour is attacking Hulk against Stark's will, will there be any questions asked by Banner later as to why a Hulkbuster exists at all (he didn't exactly miss that cage on the helicarrier after all). Or will it not be referred to as a Hulkbuster at all..more an Ultronbuster that's been hijacked?
Maybe Ultron builds the Hulkbuster as a drone. If he has access to Stark's tech/blueprints then it would be feasible and would sow distrust among the inferior humans!