Destroy 40 units with a single unit in an Unranked or Ranked game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Finish a Qualification Round with an undefeated record.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Survive 15 Infested Horde Attacks in the “Night 2 Die" mode of the “Left 2 Die” scenario.