Win 100 evenly matched Custom Games against Elite A.I. opponents.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Complete all the Unranked / Ranked Combat achievements.
Kill the Brutalisk with lava in "The Devil’s Playground” mission on Normal difficulty.