Win a Free-For-All Multiplayer Custom Game against 7 Elite A.I. opponents.
Kill a Stank before it kills anything on Hard difficulty.
Survive 15 Infested Horde Attacks in the “Night 2 Die" mode of the “Left 2 Die” scenario.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 40 units with a single unit in an Unranked or Ranked game.