Ok so we are in a post apocalyptic age. We are revived and imbued with the light of the traveler. Not only is this post apocalyptic, but we are still shooting bullets.. I repeat still shooting bullets. Our guardians are strong enough to melee enemies even master chief would struggle with. Now you want us to go to prehistoric levels of weapons after a technological golden age? The same Golden age we traverse the galaxy and create all kinds of technology, eliminate diseases, extend human life beyond sanity, and obtain levels of knowledge well beyond any other time. You really want a bow and arrow or a crossbow. As an archer in real life here. Our current bows at best will hit 320 fps and that is depending on if your even using factory tests to which are not the same arrows you would use. These are compound bows. Lets just for fun entertain the idea we find this magical material that can handle 1000 fps. Now your guardian who goes through hell as it is is going to pull back somewhere around 300-400 pounds in a compound bow set up or in re-curve a full 500 pounds or so. Over and over and over after countless enemies. It does not even make any sense to do. It already takes 3 magazines to drop yellow enemies in nightfall. So lets just throw a couple hundred arrows at them... How about no to the whole idea of this, go play Warframe they use bows.