This is purely because of

...
if ( fHasEverBeenPlayerControlled == false ) then
...

which is a new variable I added to the script. For these civilian types I added here, it seemed reasonable to only have them spawn if the player has never taken this sector. It would make no sense if prison wardens would still appear in the prison if the player has long taken it, no? In the above case, they will not spawn again if we take the sector.

You can, of course, use the functions without that particular check (or add any lua checks you like). HandleSectorTacticalEntry is called every time we enter a sector.