Destroy 50 Protoss structures in “The Dig” mission on Hard difficulty.
Destroy all Dominion structures in the “Planetfall” mission before the 5th Bile Launcher lands on Hard difficulty.
Use the A.R.E.S. to kill the Brutalisk in the “Piercing the Shroud” mission on Normal difficulty.
Score the rank of Gold in all the challenge missions.
Destroy 4 Zerg Hatcheries in the “Zero Hour” mission on Hard difficulty.