i only play sinpers lol but im allowed to play CF on Thursday and Friday so i can't teach you :/
but join a lot of TDM snipers on UK1 to learn on noobs then try EM/SnD ( on UK1 too ) after that join TDM on Uk4 with pros after a while try EM/SnD on UK4 took me 3months to be a good Qser