Battle.net

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

Finish a Qualification Round with an undefeated record.

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

Destroy 6 units with a single Seeker Missile in an Unranked or Ranked game.

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