Technically you don't know that, so don't say it like you do. But I'm going to assume you're right because why else would Fallen and Cabal look that similar. But then what are the Glimmer? The actual Glimmer not the things they control. They can't be zombies because Hive are zombies. I'd say they're a hyper advanced race of people who know how to control things. Maybe they are kind of like Forerunners? I'm going with that. Forerunners that use other enemies as mind-controlled slaves.

Ah, sorry I neglected to tack on a "I belive" or "most likely." Personally I think the Glimmer are Endermen. (minecraft reference)

It's okay. I just want to prevent the spread of misinformation. The whole "Is it an MMO?!?!" deal is bad enough. I don't want people to be confused on everything else too. At least most of the people who think it's an MMO don't go here, so it wouldn't affect them anyways. Maybe Slenderman is the King of the Glimmer?

probably Marty O'Donnell controls all the goons in Destiny, though he won't go by his normal name...