Returning to this subject:
You are having a small BUG backup when restarting on Dayz.
By giving restart on dayz, and blasting a vehicle it is spawn elsewhere.
This is happening in backup.db:
Example, barracks that is 51, when it explodes, the model (433) replaces co-modeled "x", the "x" replaces "y" and "y" replaces "z".
Before: 433, 86.486328, 1951.901367, 30, ...
Then: 433, 433, 86.486328, 1951.901367
The respawn is lost in the sky.