Upgrade a Control Node to have level 3 turrets (multiplayer or skirmish)

Recalibrate the airfield station in Mission 12: Natural Justice

Rescue Eona in Mission 10: Prison Break

Complete Act 2 of Story Mode

Secure all 3 bridges in Mission 7: Unfair Surprise

Use the Rage Smash ability

Take out the Arc-Hammers in Mission 5: Self Defense

Use the Matriarch's Acid Rain ability

Kill 80 Broodlings

Establish a portal in Mission 3: Double Jeopardy

Secure the Control Node powering the turrets in Mission 2: Assault Charge

Destroy all hiding Sai insurgents in the Tutorial

Complete the Tutorial