The problem is, the cave and ruin tilesets don't exactly link together very well.

If any of you are familiar with the Fallout 3 (or New Vegas) G.E.C.K, there's occasionally parts of dungeons where, for example, an office building has collapsed and leads you into the sewers, or a Vault has a collapsed wall, revealing a bit of cave.
That's basically what I'm looking for. I've looked all over TESNexus, with no luck, which is surprising! I would've thought for sure this kind of thing would be done before.
So, can anybody help a brother out?
