Gplayer posted something about this last night myself, I think this just comes with it being a work in progress

Aberator5
@Aberator5
Posts
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BO Multiplayer progress is not saved, as it is in BO2. -
Multiplayer rank resettingTheDyingSun I am personally not getting kicked out of games but it's good to know this is not just a me thing. These guys have made some quality stuff and this is new so I have confidence it will be fixed
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Multiplayer rank resettingI have a very simple problem, my multiplayer rank keeps resetting. I play for a little while and get well past level 4 then have to go do something and close out the game. When I come back I am back to level 1. I wait till a new game starts to leave so my stats save and only leave the game by the main menu. If I am doing something dumb I have no idea what it is and just want to know how to keep my level.
Edit: I forgot to mention my control settings also reset everytime I open the game as well.