Do you kbow that if you dont have any Tombstone to just wait to the time to go up and the game kills you, you need to head for any exfil i did it using the pause button a lot of times because it shows the minimap and you just need to align to one exfil and try to make it while the screen is black, all of the zombies will ignore you because well you are supossed to be in the dark aether but if you manage to get to the exfil you will not lose your loot.