Error whit auto Save help me
Could be connected to Xbox Live having issues at the moment. Once Xbox Live has been fixed, go back and see if the problem persists.
Hey OP, 343 is looking into this right now. You can track this thread for updates:
https://www.halowaypoint.com/en-us/forums/e0d9938206f04a598ce84f2c8cadce02/topics/unable-to-load-save-coop-campaign-343-response/ddd81837-7998-407f-a81f-8ec876ad3c74/posts