Saw someone mention this perk a bit ago. Said when you were downed it would spawn a 2nd copy of you and you can go revive yourself.
Something like that.
Aha...I see. Thanks for the info, although I'm not sure why I didn't get to revive myself. The screen went black for a second though and when it came back I didn't have any of my gear. I must have died and not realized it, I just thought those little goblins took my perks/guns.