You stealth killed a Nazi General while disguised.

In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.

You inspired the people of Paris Area 3.

You rescued Veronique.

You recovered the Aurora.

Buy every weapon off the walls in a single Zombies game.

You destroyed the train.

You sent the Nazi zeppelin down in flames.

You obtained your first gold perk.

You completed a mission without raising alarm.

You escaped from Germany.

You got lucky with Skylar.