Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
...Must Come Down. (20 points)	Destroy the plane with the weapons system on board while it is in flight.
Blood Brother (20 points)	Rescue the Georgian Spec Ops.
Breathing Room (20 points)	Destroy the second piece of enemy artillery.
EOD (20 points)	Destroy the Russian weapons transfer station.
Fuel for the Fire (20 points)	Secure the drilling ships and complete the mission.
Loose Thread (20 points)	Secure Gabriel Paez.
No Loose Ends (20 points)	Eliminate the leader of the Raven's Rock faction.
Precious Cargo (20 points)	Secure the VIP and transfer him to the exfiltration team.
Relieved of Command (20 points)	Kill the general commanding the Moscow defenses.
Source Control (20 points)	Secure the VIP and transfer them to the exfiltration team.
Special Election (20 points)	Rescue Russian President Volodin from the prison camp.
What Goes Up... (20 points)	Shoot down the cargo plane.