practice, and if you have a capture card go over your last game and see where you made mistakes and try to correct those next game use whats the most comfortable, not whats most powerful learn maps, learn them learn how to runaway and when, you are not a coward if you do so, you are a strategist be careful when going through doors, don't rush be aware of your surroundings check out True Vanguard, Mtashed, and kjhovey on youtube, all good players you should take advice from don't get slaty because that just makes you more agressive which is bad and mainly have fun, don't worry about score or KD just worry about are you having fun. thats all the tips I got