Complete all the Melee Combat achievements.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.
Win a 1v1 Multiplayer Custom Game against an Elite A.I. opponent in under 5 minutes.
Kill 50 supply worth of units within 15 seconds in a Melee game.