Originally posted by the ninjakNo, the Hulkbuster is technically a modular armor (ie. an average armor within an exoskeleton 'heavy' armor) -- but the odds of Tony popping out of the Hulkbuster in a suit that is capable of piercing Juggy's force-field with some type of BFR tech is pretty unlikely, imo. History has shown that Tony usually wears base/less advanced armor under his heavy armors.
It was the ThorBuster armor that a smaller armor could eject itself from wasn't it?My mistake HulkBuster sucks unless a more advanced armor can exist inside.
Regardless Ironman enters the Earth beneath Cain and nukes him from underneath into the sky(or lifts the ground itself). Then continues to blast a mid-air Cain into the ocean.
...Plus if enough damage is sustained initially, Tony will be out of the fight regardless of his modular armor.