Ow Gawd....
Anyone seen how many *.rigid_spline and *.rigid_model files there are under models.pack\rigidmodels?
There's heaps of files under a long list of subfolders (campaignborders (a file for each region), campaignbridges, campaignbuildings, campaignmountains, campaignpieces (contains the little ship models), campaignrivers, campaignroads...)
Oh, and anyone seen that process.cmd batch file in \data\campaign\coastline? It processes *.cs2 files, which belong to Adobe InDesign. These are somehow coupled with *.tga files (those get deleted in the end, after all) to... well, to what? To produce those rigid_meshes?