Destroy 20 units with Sniper Rounds in an Unranked or Ranked game.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Destroy 20 units with a single High Templar in a Melee game.
While playing as Zerg, warp in a Zealot in a Melee game.
Regenerate 500 shield energy on a single unit without taking friendly fire in an Unranked or Ranked game.