What does CSR mean? And How does it work

Competitive Skill Rank. In a nutshell, you gain CSR when you win, and lose CSR when you lose. How much you gain/lose depends on how well you played in a match, and how skilled your opponents were.

Breaking it down barney style, the game trying to place you in the appropriate bracket.

I don’t know if you have ever played a game by SuperCell but, they have a similar system. Think trophies but in Halo it is CSR, it is the same exact thing. If you have never played a SuperCell game then ignore this.