Destroy 40 units with a single unit in an Unranked or Ranked game.
Expand during the first 225 seconds of a Melee game.
Kill the Brutalisk with lava in "The Devil’s Playground” mission on Normal difficulty.
Regenerate 500 shield energy on a single unit without taking friendly fire in an Unranked or Ranked game.
Complete 10 missions in the Wings of Liberty campaign on Hard difficulty.