Battle.net

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

Win 10 Cooperative games against Hard A.I. opponents.

Win 5 2v2 Cooperative games in a row against Hard A.I. opponents.

Destroy 40 units with a single unit in a single League game.

Attack for 20 seconds with no counterattacks in a League game.