My friend has had this happen several time actually and I decided to report it for him he has sent me video and pictures of this one. So he was being attacked by zombies and in a couple instances he was just searching buildings. But somehow. He was glitched into the ground and swimming around. He couldn’t die there of course so this became tedious. Until he logged a couple times and every shut the game off or the Xbox entirely. It is very frustrating because I just got him back into this game and we were trying to find each other again. Unfortunately it’s turned him off of the game again. I’m hoping this doesn’t happen again but are there any tips on how to fix this if it happens again?