Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Complete “The Evacuation” mission on Hard difficulty without losing or salvaging a structure.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Score the rank of Gold in the “Tactical Command” challenge mission.
Kill 50 supply worth of units within 15 seconds in a Melee game.