5) Doors that work
Doors, we used to have so many doors, and now they’ve all been nailed shut or propped open and somehow rendered immobile. Several recent multiplayer shooters have done away with the concept of the hinge, and what for? Doors are immensely useful multiplayer tools. Shut one behind you and go to the window to pick off a few helmets, and at the slightest creak, spin around and whip out your pistol to bring down the intruder. With no doors, there is no privacy, and we like privacy when we’re lining up perfect headshots.
