Yep. What he said. Come out to Pev's on pretty much any Sunday. There's usually a decent turnout.
As far as tournaments go, the EPL - http://www.eplseries.com/
- runs a mid-atlantic tournament that has most skill levels covered. They're usually at PAP up in Taneytown, MD.
Skyline Paintball hosts 3-man CFOA events at their field in Strasburg, VA as well.