Here is profile and save for end game on Survivor mode. Just R & R both and replace yours on hard drive. Just need to get through amusement park. Easy if you take ramp and go over to the hurt guy. Stand on lift next to building roof and pick off the baddies as they look for you. This is not modded and done from beginning on survivor.
http://www.mediafire.com/download.php?89gmm80uxvl5ki5