Complete all the Outmatched achievements.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Win a 1 vs 2 Multiplayer Custom Game with no Allies against 2 Elite A.I. opponents.
Win a Free-For-All Multiplayer Custom Game against 7 Elite A.I. opponents.
Win 5 Team Unranked or Ranked games in a row.