Also, if anyone wants to make a better map of the area, by all means!
In the meantime, the rooms do need to be made. I've matched the room name with the numbers on the map above, as to help from not getting lost so easily. And if you feel like doing descriptions, go for it.
I feel like with the Catacombs, not every room has to be unique. Meaning, we can get away with copying the room name and description for a lot of rooms, not all, but a lot.