Hello! I'm new to Comp TF2 and I must say I'm ridiculously overwhelmed. I have no idea how to use mumble in correspondence to TF2 and how to join a team within it, this then leads to joining a lobby and being unable to communicate. Now, I'm not a new TF2 player at all but the thing is, Comp is an entirely new experience. For example, while I was trying to figure out how to do something (I was a spectator is a lobby), I got a message informing me that I was just reported and I don't even know what for. I'd really like to get into this and have been searching around for guides on "How to join your very first TF2 Comp" but no such thing exists as far as I can see. If there is some kind of guide, please inform me and if there isn't and if you're kind enough, please explain this all to me. I'd like to just try and join and work things out for myself but I don't want people to get aggravated and I've already been scared off by the random report.
tl;dr
explain how to join my first tf2 comp match
Thanks!