Training Day
Train 10 Marines during the first 320 seconds of a single Melee game.
Unbreakable!
Destroy 40 units with a single unit in a single League game.
Carnage Hall
Destroy 4 Command Centers, Hatcheries, or Nexuses in a single League game.
Counter-Proof
Attack for 20 seconds with no counterattacks in a League game.
Denied
Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in a League game.