Complete the “Whispers of Doom” mission on Normal difficulty with 3 or more Stalkers.
Kill 5 Changelings in an Unranked or Ranked game.
Complete all mission objectives in the “Supernova” mission.
Destroy all Rip-Field Generators in the “Maw of the Void” mission on Normal difficulty.
Win 100 Team Unranked or Ranked games as Random.