A system that lets players fight in teams!
There will be 2 new shirts. A red team shirt and a blue team shirt. If you wear these you can't damage players with the same shirtcolour.
There will also be 2 new types of respawnpads. Red respawnpads and Blue respawnpads. If you die with a teamshirt on, you will respawn on the respective respawnpad. You cannot change shirts if you are in a pvp arena and players without a teamshirt can't damage players wearing a teamshirt.
You can add more colours to have even more teams!