Tom Clancy's Splinter Cell: Double Agent
38 Achievements
1,000
Xbox 360
Xbox One
Xbox Series
HQ 1 Assignment Completed
In solo mode, completed the first terrorist HQ assignment Details for this achievement will be revealed once unlocked
30
How to unlock the HQ 1 Assignment Completed achievement in Tom Clancy's Splinter Cell: Double Agent - Definitive Guide
Complete the third mission, which is also known as the first JBA mission. As the story progresses you willbe able to learn more and more about the five major members of the JBA.