Bobby Ross, who has a profile picture referencing one of my favorite painters of all time, was a World Builder on Firefall and a World Designer on Star Wars: The Old Republic. He currently keeps a blog teaching Level Art & Design through infographics. He recently wrote and published an article about Multiplayer Level Design on Gamasutra. Its definitely worth the read. It’s a pretty legit serving of awesome sauce.
Check it out now: Bobby Ross’s guide to multiplayer level design