Be nice
Constantly insulting other players will be punished.

No Griefing / Doorcamping
Don't camp in front of other bases and don't kill the same player over and over on purpose.

Group Limit: 3
If you get caught teaming with more than 2 other players, everyone on that team will get kicked or banned.

Unspoken rules
Only because something isn't mentioned here it doesn't mean it's allowed. Drawing swastikas on signs f.e. can also result in a ban.