M'Hunters aims to serve both competitive and semi competitive players: https://www.warzone.com/Clans/?ID=141
We are a pretty big clan however apart from that we seem to be what you are looking for.
Edit: We also aren't so elitist, that we put our low level guys into a B clan. Everybody who has joined is a 100% full member.
Edited 7/24/2020 12:13:38