Saw someone using a loot cave recently that I hadn't seen before on Venus, I don't know the rate at which enemies spawn in it but the guy had obviously done a great deal of work seeing as there were like 30 orbs of light on the ground. If you head straight towards one of the beacons (starting from the statue) along the cliff side on the Venus patrol you'll find a room that spawns a servitor along with a few fallen. I think that some were activating their spawn by jumping although I'm not sure. Fix bungie