Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
A Bridge Not Too Far ( 20 points )	Secure all 3 bridges in Mission 7: Unfair Surprise.
Appetite for Destruction ( 25 points )	Destroy 77 units using the Stalker's SAMs.
Calling all Units ( 15 points )	Recruit one of every unit type in any game mode.
Clean Sweep ( 10 points )	Destroy all hiding Sai insurgents in the Tutorial.
Decked Out ( 35 points )	Win 10 ranked matches fully equipped.
Demolisher ( 25 points )	Destroy 55 Control Nodes with the Demo Bomb ability.
Demoraliser ( 20 points )	Destroy 11 enemy units in the first 5 minutes of a ranked match.
Epic Campaign ( 30 points )	Complete Story Mode on Easy or Normal.
Epic Saga ( 50 points )	Complete Story Mode on Hard.
Eradicator ( 30 points )	Beat the AI on all Skirmish maps.
Evacuation ( 20 points )	Rescue Vantage in Mission 6: Innocent Victim.
False Sense of Security ( 25 points )	Attack 24 cloaked Spectres while using the Infiltrator's Thermal Vision.
Feeding the Habit ( 15 points )	Play 16 ranked matches.
First Assault ( 20 points )	Complete Mission 1: Domestic Disturbance.
First Down and Ten ( 20 points )	Win a ranked match in under 10 minutes.
Fur Coat ( 20 points )	Defeat Sable in Mission 9: Shock Verdict.
Gone Shopping ( 20 points )	Lose a multiplayer match while the deployment queue is open.
H.Y.D.R.A. ( 20 points )	Defeat the Hydra in Mission 4: Multiple Counts.
Hammer Time ( 20 points )	Take out the Arc-Hammers in Mission 5: Self Defense.
In Pursuit ( 25 points )	Secure the AA Turrets in Mission 11: Hot Pursuit.
In Transit ( 20 points )	Secure the Control Node powering the turrets in Mission 2: Assault Charge.
Maximum Firepower ( 20 points )	Upgrade a Control Node to have level 3 turrets ( multiplayer or skirmish).
Pest Control ( 20 points )	Kill 80 Broodlings.
Playing Both Sides ( 15 points )	Win 8 ranked matches with each faction.
Power Up ( 20 points )	Secure all 3 power junctions in Mission 8: Reasonable Doubt.
Puppet Master ( 20 points )	Destroy an enemy unit with one you have Mind-Controlled.
Qualify for Duty ( 15 points )	Complete the Tutorial.
Reverse Polarity ( 25 points )	Recalibrate the airfield station in Mission 12: Natural Justice.
Rite of Passage ( 25 points )	Rescue Eona in Mission 10: Prison Break.
Scrap Metal ( 20 points )	Destroy 27 Stalkers.
Slice and Dice ( 15 points )	Use the Spectre's Rapid Slice ability to kill an enemy commander ( multiplayer or skirmish).
Spray and Pray ( 15 points )	Use the Matriarch's Acid Rain ability.
Telepathic ( 20 points )	Establish a portal in Mission 3: Double Jeopardy.
The Other Path ( 25 points )	Complete Act 2 of Story Mode.
The Other Side ( 25 points )	Complete Act 1 of Story Mode.
Totaled Eclipse ( 25 points )	Destroy 9 Eclipses.
Ulterior Motives ( 10 points )	Use the playbook to switch weapons.
Unleashed ( 15 points )	Use the Rage Smash ability.
Veteran's Affair ( 40 points )	Win 99 ranked matches.
Winning Streak ( 25 points )	Win 6 consecutive ranked matches.