Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Destroy the Loki in the “Engine of Destruction” mission on Normal difficulty.
Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.
Win a Free-For-All Multiplayer Custom Game against 7 Very Easy A.I. opponents.