The best way to find a team to play comp is to join the MWOComp server https://discord.gg/HVwDnarruE

Don't worry too much about your skill though. Community tourneys are seeded by divisions, even potatoes can participate! As for the official Championship Series, there are great rewards just for playing, there are teams of all kind of skill.

Not that I'm good enough at the game to compete, but for when I am, how does one go about participating?