The first one is a better barricading system. Sure their is the wire fence but I think the devs should either add wood planks that can be nailed onto doors or objects that can be pushed in front of doors. Of course I'm only in a beginners programming class but I feel like the objects that can be pushed wouldn't be to hard but I dont know how it work on the engine. Then my second idea is either signs or spray paint. You know so if your hiding in a building you can put a keep out sign up or help here sign or something. Just some ideas and sorry if the devs already said their working on this I havn't been reading any of their blogs or twitters or anything so I apologize.