Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Hold a Xel’Naga Tower for 5 consecutive minutes in an Unranked or Ranked game.
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in an Unranked or Ranked game.
Kill every enemy unit in the “Liberation Day” mission on Hard difficulty.
Score the rank of Gold in the “Rush Defense” challenge mission.