Recently reinstalled FO3 and got through all the hoops I've had to jump through, before (GfWL, dead dependancies, broken mods, etc). After booting it up and loading in without a crash for the first time in my history, I noticed there was still a problem, and it was a peculiar one:
The Problem: https://i.imgur.com/YtWYkSg.jpg
As you can see, the LOD is way off and I'm not sure what caused it. Normally, I've exited Vault 101 and have seen the Washington Monument in the distance (which always gives me giddy chills) but, this time, I can't even see Springvale Elementary. The 'ghosts' you see are obviously the static models but they only appear if I'm looking anywhere from South East to South. Any other direction just has empty, rocky ground.
I've never had this issue, before, and am using mods, but I've also done a clean save without mods and the problem persists. I've tried editing almost everything with LOD in the .ini to no avail and am at a complete loss.
Just in case, I've added the load order, below.
Load Order: https://pastebin.com/YLgKABYa