This feels close to perfect in terms of both presentation and substance. I like the inclusion of real-world information on kowloon walled city and now have a wikipedia page open to learn more, and the mission feels like it progresses at a good speed.
The only con I would mention is that pamphlets are a bit awkward to use as PDFs because you lose track of the page order so easily, so offering an alternate download presenting the information from left to right or with page numbers would be appreciated.