Battle.net

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

Win 250 1v1 Unranked or Ranked games as Terran.

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

Destroy 6 units with a single Seeker Missile in an Unranked or Ranked game.

Complete all the Final mission achievements.