Battle.net

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.

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

Destroy 20 units with Sniper Rounds in an Unranked or Ranked game.

Destroy 20 units with a single High Templar in a Melee game.