This scene was bullshit.One of the things that bother me in Civil War was how Cap and Buck was able to match Ironman strength.
His comic book strength is incredibly stronger than in the MCU.
They nerfed the the hell out of him.
Tony should have destroyed them both.... And the movie showed how. He analyzed Steve's fight pattern, and he free aimed the shot when niggaz tried to get away.... Tony had every advantage but plot armor