Battle.net

Destroy 40 units with a single unit in an Unranked or Ranked game.

Kill 15 enemy units with a single Nuke in an Unranked or Ranked game.

Call down 30 MULEs in an Unranked or Ranked game.

Deplete 10 Rich Mineral Fields in a single Melee game.

Using Auto-Turrets, destroy 20 worker units in an Unranked or Ranked game.