Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Win 5 Team Unranked or Ranked games in a row.
Complete 25 missions in the Wings of Liberty campaign on Hard difficulty.
Score the rank of Gold in all the challenge missions.
Win 100 1v1 Unranked or Ranked games as Zerg.