Score the rank of Gold in the “Rush Defense” challenge mission.
Score the rank of Gold in the “Infestation” challenge mission.
Win 10 Versus A.I. games against Very Easy opponents.
Kill the Brutalisk with lava in "The Devil’s Playground” mission on Normal difficulty.
Kill the Brutalisk in the “Piercing the Shroud” mission without losing a unit to the Brutalisk on Normal difficulty.