Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Use Blink to save a Stalker in a Melee game.
Load a Dropship with a unit that is under attack in an Unranked or Ranked game.
Destroy a fully loaded transport in an Unranked or Ranked game.