Gulag
From Mod Wiki
Gulags control a set of stalkers together by assigning them each tasks by task priority. For example a gulag could contain tasks for patrolling an area and sitting at a campfire. The priority of these tasks will mean that the first stalker "caught" by the gulag (that is, the first stalker to be given over to the gulag's control) will patrol the area with subsequent caught stalkers simply sitting at a fire.
For more information see Logic#Gulags.
Locations
gamedata\scripts