Important! if you try to test your mission in editor and arma3 will give error that script not found, this is because devs in their wisdom added requirement for “-filePatching” startup parameter. If you are not using this parameter then you cannot use scripts in your mission directory (they still work in a PBO), add the parameter and then your mission dir scripts work fine again. Sigh. Tested on arma3 v1.66.139586