Guys, it's been confirmed that the way you get this is by doing VoG on hard mode with no deaths. Then once you're at Atheon someone is randomly selected to roofie him. You have to bring him through the Mars portal, which then opens another portal to Charlemagne, the Warmind on Mars. Once inside everyone takes turns defiling him in the sickest of ways until he dies. This will drop an exotic weapon core. You bring this to Banshee to spark and old memory. Then you have to do this same thing to Crota in front of his father at the last part of the Kings Fall raid. Again, no one can die. After Crota gets the pounding of a life time everyone finishes Oryx. This drops the materials that Banshee needs to infuse with the core. Once you have the prototype you gather all the NPC's in the tower and have a massive orgy on the table in the Hall of Guardians. Everyone's bodily fluids must come in contact with the prototype. Then Eris rubs her green ball on it and Wah-Lah, you have yourself a brand new Sleeper Simulant! My fireteam just did this yeaterday.