Clavus have u been noclipping wihle exploring? Cuz right there I have occluder and maybe u have messed the triggers, it runs PERFECTLY for me. About the rooms with the props, some of them are breakable, others can be pushed away very easy. Thanks for the comments. EDIT: I guess you are right Clavus, but thats a ZS issue. Nothing happens in single player but when I tested it in ZS server it screwed up. It seems I have to do a fix version. EDIT: Link with fixed version: http://garrysmod.org/downloads/?a=view&id=63426