Anything created by a CK, or released to the community as a module/modification aka mod for use with a bethesda game is inherently bethesda's property. It says so in each of the EULAs. And has it held up, because bethesda ran into sticky legaleeze about nude patches. Therefore, i suggest that you cannot copyright infringe on bethesda's property by simply moving pieces parts from one game to the other. As far as releasing models/meshes/arts/sounds/etc. from one copyrighted game on a publicly accessible forum, well that's the tricky part. However we have prescident, many mods from morrowind, oblivion, i would assume the Fallouts, and even already some from Skyrim contain art from the in game source, released publicaly. Example: the patch for the Blade who wont talk. The patch is simply the BSA extraction of his bethesda created voice files, packaged and released free thru public forums. More to the point, prescidence leads civil action, if they have not sued creators of mods before, starting now would be against prescident, and most courts would not allow a suit to go thru. THAT SAID, there is a big BUT... as i said before, bethesda has the property rights to every mod. they can pull any mod from anywhere, at anytime, for any reason, and that WILL hold up in court. A simple letter of injunction to the mod creator, and the mod distributers, would effectively shut down the mod, failure on any party's part to do so, would lead not only to civil action, but criminal prosecution. LOL, that's my 2 cents...