Back to Duke's lines. Like said many of them are stolen from Army of Darkness. Even Bruce Campbell himself was little pissed of it. It was dumb move from the developers not to use Bruce Campbell to deliver those, i think he even said that he would have borrowed his voice for Duke if the developers would have asked him.
Many of Dukes lines are "stolen" from John Carpenters "They Live". Like -Time too kick ass and chew bubblegum... and im all outta gum.