Bungie has taken a TEAM oriented game and forced people to farm solo activities to get the exotics they pay for by buying the game. Exotics should be quests, raid rewards and world drops. The joy of a random exotic dropping in the world was so great in destiny. I ran 18 master lost sectors yesterday and didn't get one exotic.
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I thought it was strange when it first started since Bungie had, historically, put a lot of emphasis on the social aspect (the ‘friend game’). I do them on legend difficulty, have gotten all the exotics and find them an OK place to test out anti-champ loadouts. Some of them (on the moon, especially) are too tedious though.