Play strategically to stay alive as much as possible and do not attack enemies until the end of the game. It helps a lot if you are looking for an upgrade
if you have complete game sense you now how to push when you have avoid enemy's and you know how to handle situations when smoke then yes you can climb rank and one more thing if you know how to control recoil then you are complete
Through a lot of winning, and this comes by finding a reliable team and a lot of training together and understanding each other and playing the game a lot and making them a leader who gives decisions and this leader is agreed upon by all