I have to admit that one of my pet peeves is finding a door that isn't. I realize the whole mods fixing that issue thing, but I am going to officially say that, especially with minimal loading screens, having more places to duck out of the line of fire would be most welcome. I guess I'll have to wait and see how it works out. I guess that am the opposite of the "better no building space than boring building space" crowd. For me, even an empty room is something that might have a use. Makes me wonder if the crafting things like turrets has a proximity limitation to the crafting bench. I personally would love to be able to use small, empty spaces to set up small caches of supplies guarded by a couple of turrets.

 I want as little of that as possible. Thank you... Now I'm really worried. 
 (Strange how that would not register with certain players as an annoyance, but that the placeholder building would.)