Competitive Skill Rank

For other ranking systems, see Rank. Competitive Skill Rank, abbreviated CSR, is a ranking system used in Halo 4 War Games Matchmaking designed to pair players with similar skills into the same match. After its launch date on April 10, 2013, players' CSRs can be seen on their Halo Waypoint stats. Each playlist features its own individual CSR running from levels 1 through 50.

Overview
Competitive Skill Rank is calculated in one of two ways, depending on the playlist. Several playlists use a win/loss system to determine ranking, while others utilize individual scoring, which determines rank based on the player's performance against everyone in the match, teammates included. It is also affected by the CSR's of the other players in the game: outperforming and beating players with higher CSRs will make a player more likely to rank up, and vice versa. Playlists that utilize individual scoring allow players to rank up faster than those that use team scoring.

The playlists that utilize individual scoring are: Infinity Slayer, Big Team Infinity Slayer, Rumble Pit, Multi-Team, Team Action Sack, Flood, Team Snipers, Regicide, and SWAT. Team-based scoring playlists are: Castle Team DLC, Team Objective, Capture the Flag, Dominion, Team Throwdown, Team Doubles, and Grifball.