@Ysolde could you provide some written explanation of what do we see in the map.
Just to help you understand this is my immediate reaction to see the map. Some assumptions and questions in the picture

Also is there a big mouse on C-4 that Quickfinger missed to notice?
P.S. If there is a legend for what each think in the picture means, please provide that legend or reference to the legend. It may answer my questions.