At present, we're just trying to survive. It's a bit harder than previous incarnations. No rules needed as such, everyone depends on everyone else or death comes easily
Important things to note:
Zombies walk during the day.... but run at night time....and they are attracted to light, movement and noise.
When you spawn in, press tab and select the option to send a friend invite so the other players show up on the map. Once friended, you can't be team killed. Though technically I have managed to kill @Greboth by accident. With TNT.
Do the challenges the game starts you with, this gives skill points, and they're essential.
I may be back on a bit later and I'll look out for you. You may need to install Discord if you don't have it...