The Episode One: Paris Add-on for HITMAN has 7 achievements worth 150 gamerscore.
Complete The Showstopper.
Assassinate Viktor Novikov in a light rig accident.
Become Tobias Rieper.
Complete all Opportunities in The Showstopper.
Complete Level 5 of an Escalation Contract set in Paris.
Select a Starting Location and use an Agency Pickup to smuggle an item into Paris.
Reach Paris Mastery Level 20.