Jon St. Jon, the voice of gun-toting Duke Nukem, isn't a fan of firearms in his videogames and certainly not in real-life. The act of killing just to kill "just disturbs" the actor. Racing games over FPS, he says.
The "gratuitous violence" found in big titles like Grand Theft Auto turns Jon St. Jon right off. The iconic Duke Nukem is all for violence and big shooty guns, providing its against invading aliens.