Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Kill 250 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Win 5 1v1 Unranked or Ranked games in a row.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Score the rank of Gold in the “Tactical Command” challenge mission.