Complete the mission 'Airfield' on any difficulty
Complete the Tutorial
Complete the mission 'Storage Facility' on any difficulty
Complete the mission 'Oil Refinery' on any difficulty
Complete the mission 'Barracks' on any difficulty
Complete the mission 'Treasury' on any difficulty
Complete Every Mission On the Difficulty 'Training Wheels'
Complete Every Mission On the Difficulty 'Normal'
Complete Every Mission On the Difficulty 'Hardened'
Complete Every Mission On the Difficulty 'Punishing'
Find the 3 Sets of Launch Codes
Find the 3 Suppressor Parts
Activate the Airstrike
Destroy the 3 Terminals
Enter the Room
Find out the Truth About Your Foes
Complete Any Mission (Other than the tutorial) with 0 Kills
Complete Any Mission (other than the tutorial) In Under 3 Minutes
Finish Any Mission (Other than the tutorial) with 90 or More Health