Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

I Can Win (15 points): Won 5 ranked matches.
Weapons Expert (10 points): Fragged an opponent with each weapon.
Lord of the Arena (20 points): Defeated Xaero in Campaign Mode.
Gladiator (20 points): Fragged 1000 opponents.
This is Stroggos!! (10 points): Knocked someone to their death.
Flag Runner (10 points): Captured 3 flags in one match.
First Frag (5 points): Got a frag. Way to go!
Arena Eternal (40 points): Played in 500 multiplayer matches.
Hardcore (30 points): Conquered the universe.
Ultimate Humiliation (15 points): Humiliated an opponent carrying the Quad Damage.
Collect 'Em All (15 points): Picked up one of every item.
You're Comin' With Me (10 points): Fragged someone after dying, before respawning.