i just don't really like fusion rifles unless i'm in the nightfall with a specific burn. i prefer the murmur because it's much easier to upgrade and can switch elements. we probably need to be really picky about what raid weapons we upgrade due to how much radiant materials they require and how scarcely found they are. I am waiting to see the whole loot table before I invest. I did however get that new rocket launcher on my second character from crota. I will not delay in upgrading that. Probably not quite as good as the ghorn, but it also doesn't take up an exotic slot. Still holding onto hopes and dreams of getting icebreaker one day