I'm making a server and an adventure map and I wanted to create a class system with command blocks that shows a nickname like "warrior", "archer", and stuff like that, but I don't know how. I know this is possible because Hypixel did it as well in his map, The Wither's Challenge.
First, you should add the teams that you want as normal:
For the next part you will need something to edit the NBT data of the world, such as NBTExplorer.
Navigate to your world, and inside that, open
Now you should see some
7 entries, these are your teams that you created. You can open them up and check the
Names inside to see which is which.
You should see that one of the tags each team has is a
Prefix and a
Suffix. From here you simply need to double click on the Prefix/Suffix you want to change, and enter the string that you it want to show up as. You can make it anything, and use Formatting Codes to add colour or effects.
(Note I did 2 s/p for Team_1 and 1 s/p for Team_2)
Once you've changed what you want and saved, these should show up as the prefix and suffix of the teams in game.
Dragnoz has made a really cool video explaining how to achieve just that. He makes other helpful videos too, so you should really check him out, especially when you're creating a map.
If you have the command block placed and you have the Minecraft Essentials Plugin, and you'd like to give a certain nickname to every player who presses a button on the command block, simply input this into the command block command:
/nick @p (nickname you want them to have)
If you want to make them able to have a choice of nicknames, you can make several of these four blocks apart with a different nickname in each of them.
Also, make sure command blocks are enabled.