The sounds and soundtracks from Fallout 1,2 and Fallout Tactics would be nice. With possible additions of instrumental "timeless epic-ish" music. More enviromental attuned sounds...like if you′re wandering in a factory-ish area metal grinding on metal sounds or when a blacksmith forges he sword etc.
I'm not sure what swords have to do with Fallout, but there is a soundtrack that includes the tracks from Fallout 1 and 2 and you can download it for free here. Scroll down to the bottom of the page. It is called Vault Archives.
It wasn′t the swords themselves per se,that was an example of a sound type usually present in an industry complex environment. The Fallout games could benefit from brushed up environmental sounds.