Continuity mistake: When Major Payne screams while telling the story of the little engine that could, the wide shot shows that his hand is on his chair. The close-up however shows that he's sticking his hand out.
Major Payne: It's been two whole weeks since I killed me a man, and already I'm startin' to get the itch. Problem is I got nothin' to scratch. God, I'm hungry. Hungry for action, hungry for blood. Hell, I'm just plain ol' hungry. Feel like I'm gettin' weaker, while Charlie's gettin' stronger in the jungle. Gotta maintain discipline; gotta keep my strength up! 'Cause the hard reality is, I gotta get a job.
Answer: The credits are in alphabetical order (according to last name). He did get top billing in the opening credits though. Damon is actually listed 25th in the end credits, after his nephew, so I don't know what you saw where he was listed 7th or 8th.
Bishop73
I have the movie, and his name is right after his nephew's, so I guess I got the place wrong.