Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.
Score the rank of Gold in the “Tactical Command” challenge mission.
Build a Factory during the first 270 seconds of a Melee game.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy 40 units with a single unit in an Unranked or Ranked game.