All I've seen from the influx of perk rankings (excluding this one because it's based off flavor) is that everyone is SLEEPING on death perception and it's augment that reduces incoming damage from behind. You pair that with the Turtleshell augment from Jug and suddenly you're god until like round 30. (and also the automatic armor plates from Vulture).
Bo7 zombies perks ranked on how much id like the flavour if they were irl energy drinks
(flavours below if u care LMAO)