Just to see what the competitive side of the game is like and hopefully win, alot!

I have not played call of duty competitively before. I just started playing about a month ago for the first time in years. But I'm doing well and wanted to pursue the more serious side of the game to see what it has to offer and none of my buddies play multiplayer cause they think it is lame haha. I've played many games competitively on my PC over the past 10 years or so, all types of games. ARPG's, FPS, RTS, MOBA's literally anything. So I have a good idea how to act and how serious competitive gaming can be.