Battle.net

Score the rank of Gold in the “Tactical Command” challenge mission.

Have 21 Zerg units morphing simultaneously in an Unranked or Ranked game.

Kill 50 supply worth of units within 15 seconds in a Melee game.

Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.

Create 100 Larvae with Queens in an Unranked or Ranked game.