The Hantu Port Add-on for HITMAN 2 has 7 achievements worth 150 gamerscore.
Shoot all buoys in the water.
Complete The Pen and the Sword in Multiplayer.
Get a score above 1,000,000 points on The Pen and the Sword.
Shoot and hit the forklift driving around in the far section of the harbor.
Complete The Pen and the Sword in Single Player.
Complete The Pen and the Sword as Silent Assassin.
Complete all The Pen and the Sword Challenges.