I was playing my awesome copy of Rage tonight on disc 2 in the middle of a level when all of a sudden my game glitched and took me to the end. I'm not sure how it happened, I had just entered capital prime and still had all the parts left after I freed the other arks and then it turned out the resistance was just as evil as the authority and I had to choose which (if either) group to side with and BAM, game over. I was only about 14 hours in so there's no way I was actually at the end, hell I didn't even have a boss fight. I mean, I JUST got the BFG ammo so I'm certain there had to be a boss fight upcoming.
Has anyone else had this problem? How can I fix it? I never even got to the third disc

-wat?