this guide is related to the previous guide, about the door gradually opening due to shooting on ordered triggers - https://www.ugx-mods.com/forum/scripting/110/tutorial-gradual-opening-of-the-door/23887/msg171664#new
here I want to show you how to make sure that after shooting on the triggers and opening the door, the zone for the appearance of zombies is activated
https://www.mediafire.com/file/uq1z9tci334sy04/tutorial-gradual_opening_of_the_door%252CPART_2%252Czones.txt/file
in mapname gsc, find - shoot_3_me delete();
under - door moveX ,add -
        //you must have your zones in mapname.gsc
        flag_set( "zone3_german");
also, you need to correctly arrange the volume and not only in the radiant, and configure the zones of the appearance of zombies in mapname.gsc