Updates stuck on 100%

Going to agree with Leo here. Unfortunately, lately, anytime there's a patch or update with MW, for whatever reason (s) there's issues. Either the patch won't finish, multiplayer isn't installed, etc etc. While I hate to recommend deleting and reinstalling
the game due to the massive size, in 9 out of 10 cases that works. It basically seems like stuff isn't downloading properly or glitching on transfer and a fresh install works. Sorry I can't give ya a better answer or a workaround but that's the best option
currently

Cancel the update, then do it again. It's frustrating, but this should fix it.

If it happens again i would power down your xbox and unplug it for a few minutes (5 at least), then turn it back on and see if this fixes it!

No it isnt.

The servers being busy wouldn’t delete your game would it?

this happened to me yesterday as well

Same i downloaded it and I went to the start screen whare it says multiplyer and warzone and campaign.and i click on the multiplyer tab and it says please install multiplyer all of this happens after the update got downloaded idk whats happening