Yes, I've come to the conclusion that this would probably be less complicated and quicker to pull off, altough I'm not 100% sure if it would work the way I need ( I intend to have an exact copy of a certain group of people, e.g. a caravan or a patrolling NCR squad spawn every week or so to simulate "traffic" pouring into the Mojave) The problem with spawn markers is that they move with the npc, so I'd need a script that disables them and moves them back to their initial position or a dummy cell once they've either reached the destination, died or are out of the players line of sight, in order to have them respawn there one week after their first "arrival", to prevent them from accumulating in certain spaces or getting spread out because one guy died on the road and then respawns long after the rest of his crew got despawned and proceeds to run about on his own. And I'd need to have those that somehow died during their travels respawn reliably too. This is gonna take a while to figure out, but I'm willing to experiment and already have a few ideas.