Experience point

EXP (Experience Points) are awarded to players based on their performance in a Halo 3 multiplayer match. Along with skill, EXP determines a player's rank and advancement in rank. Points are awarded thusly : In a free-for-all match, a player is considered to have won if he finishes in the top three, or in a team match, a player wins if his team wins.
 * Win: 1 EXP
 * Lose: 0 EXP
 * Quit: -2 EXP