Transfer Davis into the Data Pad.

Burn 50 Cobwebs.

Stealthily kill 15 Enemies.

Escape the chasing Nazis on the REICH level without being caught once.

Kill 6 facehuggers while cocooned in the nest.

Lose a fight in the Mess Hall.

Key your Biometrics to the PDT Keycard.

Complete training sequence.

Kill a Xenomorph as it attempts to execute you.

In Part I, damage an enemy with one gun and kill it with another.

Complete a full day of scavenging (one day and one night)

Complete the game in Spartan Mode.