Collect all Mineral and Gas Pallet pickups in “The Outlaws” mission on Normal difficulty.
Kill 150 Zerg units with the Artifact in the “All In” mission on Normal difficulty.
Kill 50 supply worth of units within 15 seconds in a Melee game.
Destroy a fully loaded transport in an Unranked or Ranked game.
Score the rank of Bronze in the “Covert Ops” challenge mission.