The Riken They are extremely scrawny creatures. Similar to hive and guardians. These are like humans. Mutants if you will. There are 4 types Runts - they carry a small AR similar to the shredder from acolytes. They have low hp. And tend to hide behind cover. The look suspiciously like frames from the tower and are colored differently. The deprived soul - this one hovers above the ground and moves extremely slow. Has medium hp. Once close enough it will open its eyes and stun your guardian for 5 Seconds. Allowing other Riken to attack you. Arc shield.smaller than a wizard and is completley concealed in a cloak. Courier - this one carries a hammer. Similar to the gravity hammer but not quite. It has high hp and charges you with the hammer. It is large roughly the size of a cabal legionary.Void shield. Major - this one throws grenades from a mid range distance. The grenades are similar to the hunters incendiary grenades. No shield and high hp. The marksman - this one is special. It resembles a hunter but is beaten and worn. It's face cannot be seen and it wilds a sniper. The sniper looks like a weapon from the golden age. And shoots like one. It has medium hp and no shield. My theory for these creatures is that they are previous guardians that went down to defeat crota. Eris thought they had all died but she was wrong. They were captured. And cloned. They eventually escaped but we're driven mad and started their own "tower". They created "frames" out of junk parts and modified their weapons. So basically they use our own weapins and tactics against us.