Try to hold the tag for as long as possible. Pass it to your teammates while trying to avoid opponents.
There's two teams and two gamemodes:
Clutch Gamemode
Requires at least 2 players
Try to hold the tag for as long as possible to gain XP levels overtime. Once you reach 100 levels you score a point for your team. Avoid being hit by the enemy team, else they'll steal your tag.
Catch Gamemode
Requires at least 4 players
Once you get the tag, try to pass it to your teammates by hitting them with a bow and arrow, without missing. Every time you hit a teammate you score a point. Like in the Clutch gamemode, it's best to avoid your opponents.
You can also find this map on Minecraft Realms.