i know this isn't a response to me but i'd like to weigh in with my thoughts. Pretty much every map in Destiny is shotgun range, especially when you factor in sprint, overshields and blink. The long lines of sight you have to stop players before they get close are often cluttered as well. Here's how the maps play in Rumble:
Exodus Blue - largely focused around the buildings where there's little height variation. too many corners and angles; shotguns everywhere.
Asylum - only 3 major lanes on the map. otherwise overwhelmingly CQB. you have to be really good to kill shotgun players before they get to you
Burning Shrine - you win if you can snipe. Otherwise, shotguns galore.
Anomaly - best place to be if you want to avoid shotguns is the heavy ammo cave. Every other chokepoint is shotgun territory
Twilight Gap - absolutely terrible, cluttered sightlines and swiss-chees building design. Most engagements are in CQB
Blind Watch - shotguns. behind automatic doors no less.
Rusted Lands - all the major chokepoints and heavy ammo spawns are in CQB
Firebase Delphi - shotguns galore in the central rings, which hold the best sightlines on the map
Shores of Time - the only map not dominated by shotgun fights
Supers on CQB maps bred necessity for shotguns. shotguns bred necessity for ARs. the game backed itself into this corner.
Everyone uses ARs because they have the fastest kill time. You can kill 3 people with one mag of the Shingen-E in just under a few seconds. If scout rifles had the fastest kill time, people would use that.
Warlock and Titan have OHK grenades. Bladedancer also has OHK grenade
Am pretty good at the game, which is why it's frustrating how easy it is to blink + camo shotgun, or throw down a shield and create even more shotgun chokepoints. "playing the game as it is" at this point means abusing the shotguns. destiny's meta game has peaked at that. there isn't even a point in melee combat right now because shotguns have rendered it obsolete.
my win percentage speaks for itself - i consistently average ~24 kills and ~4 deaths a game sniping on every map and usually end up with nothing to show for it - not even an in-game rank. Meanwhile, the players shotgunning everywhere are earning legendaries and exotics when they lose.
everything is backwards