The New York Add-on for HITMAN 2 has 7 achievements worth 150 gamerscore.
Assassinate target with the award and exit the mission via the main entrance, data core in hand.
Dump the stock and take the scenic exit.
Select a Starting Location and use an Informant to smuggle an item into Milton-Fitzpatrick.
Complete all Mission Stories in Golden Handshake.
Reach New York Mastery Level 15.
Complete Golden Handshake.
Complete Golden Handshake on Master Difficulty.