Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.
Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Win 3 Team Unranked or Ranked games in a row.
Complete 25 missions in the Wings of Liberty campaign on Hard difficulty.