Link to a previous post with task assignments in case anyone's just clicking to the third page. In addition to providing some sort of vision and assigning everyone tasks to accomplish that, what I did was primarily scripting and the detailing of levels.
The previous post documents the Overworld Expansion from 9/29/2005, around when I became the lead developer (also my first semester of college), to 11/15/2006, around when I quit (it was my third semester in college, the server had lost a lot of players and nobody was particularly happy with what I produced).