Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Destroy 20 units with Sniper Rounds in an Unranked or Ranked game.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Destroy 20 units with a single High Templar in a Melee game.