I'm running into the problem that if I try running the installer, all comes out fine with no errors. I run the game, only to find that a myriad of meshes in, at least, as far as I've played, Megaton aren't loading/do not exist. I'm getting red exclamations over most of the ramp meshes, and some of the walls. I've spoken to a few people on the site about this, and have come to the conclusion that my "Fallout - Meshes.bsa" from the Fallout 3 folder isn't being extracted nor edited, and therefor, "TaleOfTwoWastelands - Meshes.bsa" are not being created. This is leading to some errors that make parts of the game unplayable even early on, which I assume may lead to crashes in the future. Any advice toward making the installer detect this and/or edit it, or any ways to work around the installer to get this all to work would be extremely helpful.
TL;DR: Fallout - Meshes.bsa are not being detected or edited, so TaleOfTwoWastelands - Meshes.bsa is not being created through the installer.
Thanks in advance,
Alex.