The Burial at Sea - Episode Two Add-on for BioShock Infinite has 10 achievements.
Gained five noisemakers through lockpicking.
Repaired the machine in Suchong's lab in Burial at Sea - Episode 2.
Delivered the hair sample in Burial at Sea - Episode 2.
Completed Burial at Sea - Episode 2.
Collected all Audio Diaries and Voxophones in Burial at Sea - Episode 2.
Completed Burial at Sea - Episode 2 in 1998 mode.
Knocked out two or more enemies using the same Gas Bolt.
Used Ironsides to collect 20 rounds of ammo or more 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.