This map is not complete yet, but it is pretty far for what it is supposed to be.
-the Tunnel where Sonic and Shadow meet. No moving textures though -the battle stage itself with a little piece of the tunnel in front of it.
the stuff that need to be done some day:
-since the battle stage is supposed to be under the ARK, there are buildings that point down from it all over the place. They need to be modeled or morphed into their shape. -in the original Sionic Adventure 2 there were meteorites alongside the battle stage. I got no props for that and making an orb in hammer editor is pretty much impossible, so i need some kind of miracle. Or you put something similiar into your scenes in the sfm, but that means a lot more work for you, though.