Easily the most problematic thing I've found in the game thus far is the mechanical synergy between, or perhaps the lack thereof, the processes of both sprinting and reloading.
Though not entirely realistic, I reckon it has the capacity to bring an increased sense of fluidity to Destiny 2's current game-play.
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Bungie wants the game to feel slow, or at least that's what it seems like, so reloading during sprint would be counterintuitive.