Alright guys this has worked for a lot of people including me. I had tried everything and its finally working.

Delete all the files (except adv_options) in the call of duty modern warfare players folder in documents.

Note: This is not in the game install location. The folder is located in your documents folder. By windows default it would be “C:\Users\username\Documents\Call of Duty Modern Warfare\players” where “username” is your windows username.

Open the adv_options file in notepad and change [configcloudstorageenabled = 1] to 0 and save. Start the game set your settings and then close the game. Change [configcloudstorageenabled = 0] back to 1 and save. Restart the game and you should be g2g. Make sure you went back through all of your settings and put them to what you want or had.

Note: A few people who this did not work for reported that when they went back to the file the option was already set back to 1. I did not experience this, but if you do my thought would be to leave the file open in notepad after you save it and maybe it won’t be able to write changes to it. Hope it works for you guys. Spread the word out there if it does.

FYI - You will lose campaign progress. I might look into how this can be restored if I catch some free time.