this is the separate mission.sqf i've created for the trigger with the editor
_this = createTrigger ["EmptyDetector", [4768.8872, 10217.75, -339]];
_this setTriggerArea [200, 200, 0, false];
_this setTriggerActivation ["ANY", "PRESENT", true];
_this setSoundEffect ["$NONE$", "", ""...