I feel this game is missing a huge part of any social game! Trade between players! There doesn't even seem to be an option to sell your unwanted weapons to merchants, only dismantle them (let's be honest, 32 glimmer for a rare hand cannon is a deliberate smack in the face), or store them.
I really feel an auction house (Like the one in WoW, or FIFA/Madden Ultimate Team) should be implmented in the game. Sure I may not be a fan of pulse rifles, but that Legendary Pulse rifle may be just what someone else is looking for.