Complete all the Outmatched achievements.
Win a 1 vs 4 Multiplayer Custom Game with no Allies against 4 Harder A.I. opponents.
Finished a season in a Team Master Division.
Capture 50 enemy units in a single Vortex in a Melee game.
Destroy 6 units with a single Seeker Missile in an Unranked or Ranked game.