All of the placed objects in the map are from the Mod itself.
As for the directory structure, I fixed it. New version to follow. I also fixed the missing minimap issue, as you were right in assuming the jpg wasn't in the .xml correctly.
I plan to run this server as either or both Equal Sides Equipment or Clan VS Inner Sphere, as IS starts with a low area and a Vtol/ Aero base and a Mech Hanger, and Clan is indicated as having a Attacking force that managed to take over an abandoned Aerospace Hanger. I may just remove the extra hanger and runway, as it currently can only have the Clan Aero's spawn at it.
Some of the water, however, is quite deep, so It may be an interesting fight in the gloom.