Complete 15 missions in the Wings of Liberty campaign on Hard difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Don’t let the Odin drop below 30% of its total life in the “Engine of Destruction” mission on Hard difficulty.
Destroy the Loki in the “Engine of Destruction” mission on Normal difficulty.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.