How I believe the deathban should work.

Every person you kill you gain one minute on your deathban which could lessen killing new people more often. Everytime you die it adds a minute to your deathban. Everytime you kill a zombie 5 seconds is subtracted from your deathban. The max ban you could have is fifteen minutes. Then it starts back at zero.

Edit: changed from five minutes every two kills to 1 minute every kill.