Destroy 10 cloaked or burrowed units in a single Melee game.
Destroy 40 units with a single unit in an Unranked or Ranked game.
Destroy a total of 100 enemy units in Free-for-All Quick Match games.
Score the rank of Gold in the “Infestation” challenge mission.
Score the rank of Gold in the “Harbinger of Death” challenge mission.