- >= 3 killing spree damage taken formula changed from (100% - killing spree * 3.33%) to (100% - killing spree * 10%)
- Boss now gets a minor knockback reduction if more than 24 players are alive.
- Boss airblast resistance increased from 30% to 35%.
- Boss will no longer get rage from airblast if rage is at or above 80%.
- Reduced rage gained from airblast to 5%.
- Bonk uber duration decreased from 8 to 6.
- Force-A-Nature now only deals mini-crits if used with the Crit-A-Cola.
- Airblasting the boss now removes an additional 15 ammo from the Pyro.
- Heavies now deal 20% additional knockback with all attacks.
- Engineer's pistols now only deals mini-crits.
- Self uber effects (bonk, battalion backup) reduce damage dealt while ubered by 25%.