Your clan can win rewards by participating in clan operations. The clan that finishes in 1st place wins the Champion badge. Placing in the top 10% earns a Gold badge and the top 25% earn a Silver badge. Below the 25% threshold, all participating clans are awarded a Bronze badge, so long as they finish the operation with a non-zero score. All clans that finish Bronze or higher will also earn Clan XP. Keep in mind that your clan must enlist in an operation before its start date and time in order to participate.
