Nuke is the victim of decades of systematic physical and mental abuse and conditioning at the hands of various individuals working for the United States government. As a result, Nuke is insane. He is now little more than a puppet in the hands of his current handler, and able only to follow issued commands. Nuke is completely schizophrenic and suffering from hallucinations.
Related Dorksidetoys links: Marvel Legends Civil War Nuke, All Marvel Legends, Newly Listed Marvel Legends Captain America Civil War Wave Set of 6.