Kill 750 additional Zerg units in the “In Utter Darkness” mission on Normal difficulty.
Prevent the Protoss from capping a Tal’darim Altar in the “Welcome to the Jungle” mission on Hard difficulty.
Complete all 29 Wings of Liberty campaign missions on Hard difficulty.
Dodge a Raven Seeker Missile in a Melee game.
Rescue 10 Drop-Pods of Dominion Troops in “The Gates of Hell” mission on Hard difficulty.