Okay. I tried and it seems you can't run scritps for missions outside the directory. Could possibly be to do with anti-"hacking". I've ran scripts for addons outside the mission folder. I think this just could be for missions.
Copyright (c) 2006 - 2020 Armaholic.com All Rights Reserved.
Armed Assault, ArmA: Combat Operations, ArmA: Queen's Gambit, Arma 2, Arma 2: Operation Arrowhead, Arma 2: Combined Operations, Arma 2: British Armed Forces, Arma 2: Private Military Company, Arma 2: Army of the Czech Republic, Arma 2: Reinforcements, Arma 2: Firing Range and Arma 3 are trademarks or registered trademarks of Bohemia Interactive a.s.