Unlock all other Part I Achievements.
Finish Part I on Insane Difficulty.
Get 30 kills with the Pulse Rifle.
Get 30 kills with the Riot Shotgun.
Get 30 kills with the Revolver.
Correctly rewire 30 junction boxes.
Use the Pulse Rifle to trigger a controlled explosion.
Kill a Xenomorph as it attempts to execute you.
Kill 2 Xenomorphs at once by detonating an exploding Barrel or Pipe.
