Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Extraction (10 points)	Mission 1 - Rescue all the civilians in single player.
Intelligence (10 points)	Mission 2 - Acquire all intel on Coldstrike's plans in single player.
Pansy Worm (30 points)	Mission 3 - Defeat the Panzer Wyrm.