Battle.net

Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.

Destroy 4 Command Centers, Hatcheries, or Nexuses in a single League game.

Destroy 6 units with a single Seeker Missile in a League game.

Kill 15 enemy units with a single Nuke in a League game.

Destroy an enemy Command Center, Hatchery, or Nexus while it is under construction in a League game.