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.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Don’t take damage from the Archangel in the “Back in the Saddle” mission on Normal difficulty.
Win a match against an Elite A.I. opponent.