The ranking system questions
 

I have 2 questions.
1. The dots beside rank of a player, Gold, Silver and Bronze. ive tried searching for definition and i cant find any. im looking for a moderator or someone who can post the meaning WITH proof of its definition. ive heard all kinds of things from players but im looking for some facts with sources.
2. The ranking system scores. is there a write up on how a game gets scored? kill more higher score, high losses lower score, bigger kills more points and so forth. WHAT determines the score after a ranked game and how is it calculated. i dont expect an answer to this but i thought something might be available. same as #1 though, if you answer i need sources for confirmation.
Thanks.

bump. . . . bueller?