Board Thread:Questions and Answers Forum/@comment-110.32.12.224-20141012085004/@comment-25267708-20141013010134

I think it happens on the rocketyard on earth. Im not sure how you trigger it, either clear the enemies out of the area a lot, or it just kinda happens when youre in the area for a while. Or it might just be completely random. I had it happen once when I was in the rocketyard farming for spinmetal & chests for like an hour or so. A similar thing can happen in skywatch (also on earth.) that happened to me when I was using the original loot cave once.