Battle.net

Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.

Kill 5 Changelings in an Unranked or Ranked game.

While playing as Zerg, warp in a Zealot in a Melee game.

Destroy all Zerg structures in "The Devil’s Playground” mission on Normal difficulty.

Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.