Complete the following achievements to unlock Xbox Live Gamerscore points.
Completed Training 10 points: Complete the Single Player training mode.
Combo x2 15 points: Kill two opponents in rapid succession.
Combo x5 20 points: Kill five opponents in rapid succession.
Challenge x15 10 points: Defeat fifteen opponents in Challenge mode.
Challenge x50 25 points: Defeat fifty opponents in Challenge mode.
Won 10 Matches 10 points: Win ten matches in Single Player or by playing on Xbox Live.
Won 50 Matches 15 points: Win fifty matches in Single Player or by playing on Xbox Live.
Won 100 Matches 25 points: Win one hundred matches in Mission Mode or Battle Mode.
Complete Mission Mode 20 points: Complete Mission mode.
Played 100 Matches 25 points: Play 100 matches either offline or on Xbox Live.
Marksmanship 25 points: Score over 10,000 in the Shooting Range.
Six Degrees of Small Arms 0 points: Play online.
December 1, 2006 - 6:53am