Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Complete all the Artifact mission achievements.
Complete all 29 Wings of Liberty campaign missions on Hard difficulty.
Complete the Wings of Liberty campaign under 8 hours of total played mission time on Normal difficulty.