Does anyone else feel that the Fallout 4 universe is... well, too happy? As much as I love tearing a swath of carnage across its wide-reaching areas, I cannot help but feel a lack of intensity. It just doesn't seem like the foreboding world you would expect a post-nuclear wasteland to be.
I seem to have now remedied the situation, however, for myself at least. It may seem strange to some, but for me it works great. Try turning the music off. Completely. Wandering the wasteland and hearing nothing but the howling winds or the restlessness of a tempest brewing, the level of immersion is palpable. The ultimate is when a radiation storm descends, experiencing a ruin littered with the remains of the war's dead, the game is truly transformed. Immersion is further enhanced with enemies as there is no musical cue for when they attack and it is easier for you to be ambushed(imagine the only warning of an attacking Deathclaw being the pounding of its talons as it charges you from behind).
I personally don't care for most of Zur's work, even though some of the battle themes are quite epic. I don't think the music is bad, just not a good match with the gameplay imho, especially with the dungeon-crawling sequences(a place that should fell dangerous and unsettling simply feels quaint with the soundtrack). If you feel similarly, then try muting it, it makes all the difference.