I'm also on series X and I have many weapon and skin unlock progression issues. Multiple reloads, restarts, reboots haven't done anything to fix this for me. I've gotten a few weapon and vehicle attachments to unlock upon completing the kill objectives. However, most of the weapons now will show zero progress no matter how many kills I get. The only unlocks that are working for me are the unlocks based on level. Today I even tested the Dozer ballistic shield kills to see if I could make progress on unlocking new Dozer skins. I got 20 kills with the shield in one match. Got an achievement to pop for doing that. But after the game was over, I checked my progress and the kills with the shielf still said zero. This has been happening to me for the past 3 days
