Complete 6 levels on Supersoldier difficulty

Find Nathan Gould

Kill at least 3 enemies with a single grenade

Escape the Battery Park evacuation center

Kill 4 enemies in a row with headshots

Used Ironsides to collect 20 rounds of ammo or more in Burial at Sea - Episode 2.

Completed Burial at Sea - Episode 2 in 1998 mode.

Collected all Audio Diaries and Voxophones in Burial at Sea - Episode 2.

Repaired the machine in Suchong's lab in Burial at Sea - Episode 2.

On three occasions, knocked out an enemy after silently dropping off a Freight Hook.

While invisible, used Peeping Tom to knock out 15 enemies with a melee attack.

Destroyed ten Turrets in Burial at Sea - Episode 1.