Iron Man (Earth-614)

Iron Man is a playable character in Marvel: Civil War and Marvel: Infinity War. He is the main antagonist of Marvel: Civil War and a supporting character and secondary antagonist in Marvel: Infinity War.

Marvel: Civil War
When Crossbones kidnapped Pepper Potts, Tony Stark tried to save her. The inference of the New Warriors results in Crossbones blowing himself up, killing Pepper and 600 other people. In response, the government began a superhero registration act which Stark supported. Captain America opposed to the act, leaving the Avengers disbanded.