Well, @flopchop removed his question but you can only edit unbinarized (or whatever the option is called in the editor) mission.sqm files. If that is the case then you can change the persistence method by settings the "source" to "pns" inside the "alive_sys_data" class somewhere in the mission.sqm.
Here it is......... https://sharemods.com/x0v5cfkw6xu4/mission.sqm.html
Murghab District (Phase 1).lythium
That file was still set to cloud saving. I've edited it and you can download it from https://www.dropbox.com/s/fcji2qxv1vg1o44/mission_pns.sqm?dl=1 . Make sure to rename the file back to mission.sqm. ^^
Player position persistence is optional, and off by default. If you want it on, I believe it’s in the player data module (if not there it’s in one of them, you’ll see it). Vehicle position only persists if a human enters the vehicle as driver and then exits the vehicle.