Destroy 10 cloaked or burrowed units in a single Melee game.
Complete “The Evacuation” mission on Normal difficulty without losing a Transport Truck.
Complete the “Outbreak” mission on Normal difficulty before the 5th night.
Destroy all Rip-Field Generators in the “Maw of the Void” mission on Normal difficulty.
Kill every enemy unit in the “Liberation Day” mission on Hard difficulty.