The biggest pain to contributing is learning where to begin work.

So there are two ways we can improve this:

  1. Create an index of everything in the halo universe, using sources such as in-game text and the books.
  2. Contribute to a list of topics that need to be covered, and articles that need to be created/expanded, so contributors know what needs working on.

Can the distinguished users of Halopedia help out in any of these? The 2nd would be more realistic of course, since it would only take 2 minutes of your time as and when you find "gaps", to add them to the list.