probably lots of things you could add to improve the game. 1.Running-Enemy shooting at you slows you down so running could be used to escape. 2.Hosting- Hosting games could be a good thing to add, some people prefer private games. 3.Custom Maps? 4.Swimming 5.Close Range Weapons 6.Special Weapons. Also possibly widen stairs or something to help with the fall damage and speed of player (People always die)
@pityone you can already send two survivors to remove a piece of junk to reduce time waiting for it to be removed.You just click on it without clicking on any of your survivors. I'm just not sure about using two for different tasks though.