This is definitely something think needs to be implemented for SA. Since the zombies are going to run indoors, there needs to be something to balance it or you will never get a chance to loot unless you remain completely undetected always. Now, when I say doors should be able to be closed, I don't mean that I think that the zombies will go away or just leave you alone. I think that zombies should be able to break down a door after it takes enough hits. I also think it could be possible that the sound generated from beating on a door draws more zombies. So, it could make for a very intense moment without it being just stupidly frustrating. Think of it. You are trying to sneak up into, say, a grocery store. You are spotted by one zombie. You get inside and close the door. You know you don't have much time, so you had better look quickly. Every moment you spend examining something is more damage that door is taking. You look up and suddenly there are a group of zombies. You have no time. You better get out now before they break through. They break the door and you barely have had a moment of respite before running for another door and out to a safe distance. It's a thought. Basically, they should need to break doors. Why the hell would a rotting corpse remember how to work a doorknob? It wouldn't. However, we shouldn't get off easy enough to just hide in a house with a door. I guess that would mean that when the door breaks, it's broken off until a reset. That could be intense as well.
