You stealth killed 50 or more Nazis.

Upload some music to your system, play that music while playing with detuned, and maximize one of the distortive sound effects.

Use all Modes at least once in a session.

Watch the demo mode to the end.

Use the pump controls to pump up and release completely an effect.

Use the right stick to crank up an effect.

You made it through a story mission with your disguise intact.

You obtained your first silver perk.

Complete Mission on any difficulty: Awakening

You escaped from Germany.

You got lucky with Skylar.

You've arrived in Germany with Jules.

You inspired your first area of Paris.