Is documentation for DoD going to be released? It seems like people have figured out a lot of it... should I just wait or mod tools or something?
At the moment, what you can do is ask other modders, and direct questions to the developers about certain things. And there aren't that many things you can do that aren't used in the game, to be honest, with every added part being there because of "Modding Requests" thread, so it's a good place to start.
There's a start-of-a-guide here http://community.gaslampgames.com/threads/dod-modders-handbook-diggle-edition.1812/ and I was told he would be working on it. Beyond that, main way to learn is to grab a mod that does what you want to do (like a skill line) and learn what does what manually.
Ok, so just to confirm, there's no known schema or anything similar for the XML files? I do have some ideas, mainly around some additional room variety, but it would be nice to know various node types and attribute values if possible. Those handbooks are a good starting point, though. Thanks!