Like the story but this part seemed a little unrealistic to me because I doubt Shield and Nick Fury would give access of such information so quickly to anyone let alone a teenage boy. I know he's a genius and everything but still...
at least he should give himself some powers to protect himself, in a fight with mutants, aliens and sorcerers he would be helpless without his tech, all that is needed is to cleave the robot in half and it's all over