Called when the game(server) needs to update the text shown in the server browser as the gamemode.
This hook (and the sv_gamename_override command) may not work on some popular gamemodes like DarkRP or Trouble Terrorist Town. This is not a bug, it's just how it works. See here for more information.
This hook only works on dedicated servers.
The text to be shown in the server browser as the gamemode.