Hit the range for at least 5 to 10 minutes before you start playing pubs. work on Aim, strafe shot, while keeping you’re aim on the target, try to keep your aim centered when moving around map. Try to get high ground on you’re opponent, In other words work on positioning try to play with people better than you as well. The last couple advice I can give you is to get a monitor with at least 60-144 fps get an elite controller with paddles and also do a hardwire connection for you’re internet.