I don`t know if this has been suggested before but I was thinking of giving more options of action to a door. In other words, to give them a more realistic interaction with the players and the game. My suggestions by the time are: - The possibility of closing doors and, hence, not letting infected pass through, unless they break it. - The possibility of locking doors, as long as you possess its key. - The possibility of blocking a door with furniture or with a wedge, forcing others to break it to get it open. - The possibility of breaking some doors (wooden doors, for example). You would need a tool to do it ( An axe, for example). Some doors, on the other hand, would be incredibly hard(or impossible) to open. - The possibility of the infected breaking some doors. They wouldn`t need anything, as they are angry. That`s quite it,for now. What do you think of it?