So i've been playing red dead redemption a lot on the 360 in the past. i've gotten to blackwater and completed all the missions for prof. MacDougal. after several weeks of not playing, i started up again. but when i did, a lot of my progress was deleted so i have to do all of the missions for marshall and west dickens all over again. i have no idea how this happened and i don't know if i can fix it.