Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Complete 25 missions in the Wings of Liberty campaign on Brutal difficulty.
Beat the Terra-tron on the Lost Viking arcade machine.
Win a 1v1 Multiplayer Custom Game against an Elite A.I. opponent in under 5 minutes.