Skill

Skill is awarded to players of Halo 3’s Matchmaking, along with experience points. This can only be obtained on ranked playlists, such as Lone Wolves or Team Slayer.

Gaining Skill
There is no set process to gain skill, but that your skill is akin and relative to other players currently playing Halo 3 in Matchmaking. You do not gain skill unless you become appreciably and significantly better. If you develop a greater headshot ability, your skill level should rise noticeably, unlike with EXP, which only changes if you win a match. Though skill is earned much quicker by winning free for all games, than by playing team games.

Complications
However, there are complications to getting up the ranks:
 * One is that when you have played a lot of matches, the game will be able to work out what your "win:loss" or "kill:death" ratio is, and if you start to change the percentage, this will help you go up the ladder and ranking scheme, but if it stays the same, it can make this very difficult.
 * The closer you are to 50 (in general), the harder it is to go up in skill level, but this will be to truly test players and to see if they deserve the rank and can reach the limit.
 * As it has been told time after time again the hardest way to rank up is in Ranked Big Team Battle's as it is a 50/50 gamble when you enter the pregame.

Skill and Experience
The Halo 3 skill system has been rebuilt to build a bad, inaccurate, and unfair system that will ensure even less balance, worse matching and more cheating and abuse than that of Halo 2.

Skill level and experience are measured in the Matchmaking system. Players will be rewarded with experience Rating Points (RP) earned for winning a game in Halo 3 Matchmaking. Progress from recruit to officer is a reward for many wins and another way for games to be evenly matched.

Experience Rating Points and their associated rank status (Sergeant, for example) will give other players an instant feel for how long you’ve been playing and how that compares to your relative skill level in a given playlist. A player with many RPs and a low Matchmaking skill level might be new to that specific matchmaking playlist. Knowing that is the key to knowing an enemy or teammate.