The most important element here is leverage. Without leverage you do not succeed.

I love this mod, but not the current server settings. This would work will with Zombies. See, you'd run into a building with no JVS windows or doors, break all the furnature, maybe some of the inner walls, and make a barricade. Team Damage would be off, and people would have to work together to build, maintain, and defend their forts from the zombies, like a tactical Left 4 Dead. Of course, after a certain amount of time, the base will be unwavering to any Zombie attack, and it'll get "boring" for most people. Perhaps a mod where if there were no player deaths within the past 5 minutes, then the base is considdered "saved" and the mini resets? Self Delete would be disabled to prevent people from killing themselves before the timer goes down, or maybe it would somhow exclude sucides. Just a suggestion for a possible update or spin-off add-on.