Kill a Stank before it kills anything on Hard difficulty.
Warp in 100 units with Warp Gates in an Unranked or Ranked game.
Complete 5 Protoss research console projects.
Destroy all Rip-Field Generators in the “Maw of the Void” mission on Normal difficulty.
Destroy 40 units with a single unit in an Unranked or Ranked game.