You can see where previous PC parties from other campaigns had made it thus far,
That reminds me a lot of Paranoia. Had one adventure where the troubleshooter clones get send to repair some macguffin deep in hostile territory full of commie mutant traitors. Several times you would traverse the same places and come across the corpses of your previous selves. And immediatly loot them for equipment and then use "your" corpse as a decoy.