Destroy all Zerg structures in "The Devil’s Playground” mission on Normal difficulty.
Use Blink to save a Stalker in a Melee game.
Win 5 1v1 Unranked or Ranked games in a row.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.