I did the quest "Return to Sender" and in the end Chief Hanlon killed himself (not the ending I really wanted to choose) and I left and went back inside and the NCR started shooting me. I freaked out left and all of Camp Golf was shooting me same with other NCR camps. So I was wondering is there any way that you can restart a quest like resetting it or anything like that. Also I have the X-Box 360 version. Please and thank you.