I got inside the building with the nuke last night. Now this morning, all of my 3 saves that exist on that map (even the save 6 minutes before, well outside of the building) load to an immediate white explosion and death.
None of my saves are under 1MB even when zipped individually, so I just put them in a 7zip and changed the file extension to .zip (so change this back to .7z). Not sure if I should be doing that, but I can’t find another way unless I upload externally. You should definitely allow 7zip as it makes it much easier.
nuke_save.zip (697 KB)
Hope this helps with solving the issue. Thanks.