The HITMAN 2 Add-on for HITMAN World of Assassination has 13 achievements worth 195 gamerscore.
Complete Nightcall.
Complete Three-Headed Serpent.
Complete The Finish Line.
Complete Chasing a Ghost.
Complete Another Life.
Complete The Ark Society.
Reach Isle of Sgàil Mastery Level 20.
Reach Mumbai Mastery Level 20.
Reach Whittleton Creek Mastery Level 20.
Reach Miami Mastery Level 20.
Reach Santa Fortuna Mastery Level 20.
Reach Hawke's Bay Mastery Level 5.
Complete The Last Yardbird as Silent Assassin.