Complete 20 Heart of the Swarm campaign missions on Brutal difficulty.
Discover the true purpose of the Xel’Naga Artifact while at the Skygeirr Platform.
Complete 25 missions in the Wings of Liberty campaign on Brutal difficulty.
Beat the Terra-tron on the Lost Viking arcade machine.
Kill 50 units with a single Penetrator Round in the “Belly of the Beast” mission on Hard difficulty.