i'm going to start off by making it clear that the ONLY thing that affects your rank is wins/losses/ties of ROUNDS. The Competitive Matchmaking system is based on the chess ranking system called Elo. Winning ROUNDS will always gain you Elo points, losses will always lose you points, and ties depend based on the average ranks of the two teams. Essentially, each round of a match is treated as a chess game. Before the match, the system will calculate how many rounds you are expected to win based on the average ranks of each of the two teams. After a match, the system will compare its prediction with what really happened. Kills, score, weapons used, or getting reported do not EVER affect your rank or how many Elo points you get.