Spend 30 minutes' worth of Filters.

Make 10 Spiders flip belly-up.

Use 10 Lever Switches.

Complete the ECHOES level undetected by the Watchmen.

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

Complete training sequence.

Complete "Atlas."

Spend your first Exo upgrade point.

Prevent the walking tank from being destroyed by the Drone Swarm in "Induction."

Complete the game on Casual difficulty.

Kill 400 enemies.

I should get this whole generator panel running just in case. (Ch. 14)

Sneak Kill an enemy after hitting them with a bottle.