Here is the full list of all 12 Sine Mora achievements worth 200 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Promoted to General of the Air Force
Promoted to Major General
Promoted to Colonel
Promoted to Major
Promoted to Captain
Promoted to First Lieutenant
Destroy everything in the Prologue and remain unharmed
Promoted to Lieutenant
Promoted to Master Sergeant
Promoted to Sergeant
Fail the Prologue
Promoted to Airman