Xanthior

I'm currently using a script which makes civilians have a chance to have a weapon, to add to the hostile environment, and I have had problems of civis coming onto the base, and players cannot defend themselves due to the base protection, so I was wondering if you guys could tell me how I could disable it, or reduce the area of land which is protected, I've looked in many of the unpbo'd files but can't find anything on it. Thanks in advance