Gas Guzzlers Extreme achievements

Survive the tenth wave of zombies in Defend the base or Survivor game modes

Win 10 multiplayer events in any game modes

In multiplayer win last man standing game mode against 3+ players

Survive the ninth wave of zombies in Defend the base or Survivor game modes

Rank in top 25 players in any of leaderboards available

Get smash killed five times during one multiplayer tournament

In singleplayer win battle race by killing everyone before race ends on impossible difficulty

Win all events in multiplayer tournament

Survive the eighth wave of zombies in Defend the base or Survivor game modes

Use smoke to blind 10+ more opponents with smoke release in any multiplayer event

Kill 10 opponents with a railgun

Win twenty races in a row in any game mode