Complete Sequence 3.

Took your first enemy Dog Tag

Failed to prevent the attack

Found the nuke

Re-Enter the Animus.

Protected Chaffin from the soldiers in the street in Operation Swordbreaker

Complete a practice in Superstar Mode

Score 20 points in a game (No OTP or co-op)

Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.