Cleared the elevator shaft of the bio-material

Found every Audio Log

Reprogramed the three Simulation Units on the Command Deck

Reached Level 6 Heavy Weapons skill

Completed the game as a Marine

Killed an enemy with the Laser Rapier

Reached Level 6 Modify skill

Unlocked all Achievements / Trophies

Reached Level 6 Cyber Affinity

Completed the game from start to finish on Impossible difficulty

Destroyed all 16 Black Eggs

Killed an enemy using the Annelid Launcher

Reached Level 6 Psionics

Restarted the Engine Core on the Engineering Deck

Reached Level 6 Exotic Weapons skill

Visited every one of the Love Simulation rooms

Reached the Engineering Deck through the Medical maintenance access

Reached Level 6 Endurance

Recharged an energy-based item or weapon with Electron Cascade

Reached Level 6 Maintain skill

Received the secret e-mail from A. Bananas

You disobeyed orders and paid the price

Reached Level 6 Standard Weapons skill

Reached Level 6 Hack skill

Chose the Marines career path

Completed the game as an OSA Agent

Destroyed the Brain of the Many

Reached Level 6 Repair skill

Chose the Navy career path

Chose the OSA career path

Killed an enemy using a Level 2 modified Fusion Cannon's Death Mode

Reached Level 6 Energy Weapons skill

Hacked a GAMEPIG Handheld game console

Weakened Xerxes

Reached Level 6 Agility

Used Kinetic Redirection to pull an out-of-reach item

Hacked psionically using the 4th tier Remote Circuitry Manipulation power

Killed a robot with the Armor-Piercing rounds

Applied 4 OS upgrades

Used Imposed Neural Restructuring to make an enemy kill another enemy

Completed the game as a Navyman

Reached Level 6 Strength

Killed an enemy that was stunned with the Stasis Field Generator

Hacked a turret while the security is not offline

Upgraded any weapon to Level 2 Modification

Turned the security system off after alerting The Many to your presence

Drained a non-robotic target of health using the 5th tier Soma Transference power

Made it out of Cryo Recovery B and into Medical

Reached Level 6 Research skill

Killed an enemy while using 4th tier Photonic Redirection power