Most badges are avaiable to VIP players on KOTH servers since the 5th of October 2020, they are displayed next to the player's name and on the scoreboard.
They can be customised, removed, or added by every official King Of The Hill community and some are unlockable if a player meets certain conditions.
If you aren't VIP on any KOTH server, you will only be able to use badges that you have previously redeemed on the official KOTH discord, see "UNLOCK MORE SPECIAL BADGES ON DISCORD" for more information.
Unlocked if you have 1 million credits or more in the bank.
Unlocked when reaching level 69
Unlocked if you have the GM6 LYNX APDS unlocked.
Unlocked after 1000 tactical insertions in the AO.
By joining the KOTH discord you will be able to unlock special badges and double XP every week.
To get all this, you need to head to the #bot-commands channel and type a personalised command by providing your UID or Steam page link, for example !promo 7656XXXXXXXXXXXXX or !promo https://steamcommunity.com/id/link-to-my-steam-account/. Code is unique and will work only for you, enter it in the in game Player Menu. New codes with new badges arrive each week, but you'll be ale to keep unlocked badges forever, so check again often.