Battle.net

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

Destroy 10 cloaked or burrowed units in a single Melee game.

Win a Free-For-All Multiplayer Custom Game against 7 Harder A.I. opponents.

Kill every enemy unit in the “Liberation Day” mission on Hard difficulty.

Win 5 3v3 Versus A.I. games in a row against Medium opponents.