2 ways from what i know
- have a low lvl player/noob/new player in your list. shortly after he starts searching for a game, join him
-lost 5 games on purpose with a bad KDA, with a lots of shots missed on purpose and close the game. next time you boot the game, it will check how good you were in the last 5games. Your next 5 games you will be put with noobs and bots