Call of Duty: Black Ops II

I was playing just now and started the game with the dead shot perk. Midway through the game, I killed a zombie with a body shot and the head exploded per usual. Not 3 seconds later I killed a zombie in the same manner, but this time the head didn't explode. Subsequent kills confirmed I no longer had the perk, and I went back to theatre to confirm this is what happened as well.

I'm thinking maybe some sort of headshot/kill ratio must be maintained in order to keep the dead shot perk active, and perhaps I crossed that threshold when I killed the last zombie whose head exploded. I calculated these ratios and they are as follows:

0.3371 (2nd to last zombie kill with perk active)
0.3369 (last zombie kill with perk active)
0.3367 (first zombie kill without perk active)

I would imagine that with the perk, if this ratio idea is true, your ratio before the kill is what determines if the perk will work or not. That's why the perk still would work on the zombie that you kill that puts you below the required ratio. Once below this value (which in this case appears to be 0.3370) you lose the perk and must reacquire it. Keep in mind this is all just speculation and may be completely wrong, and can probably be confirmed as wrong if someone has the perk below this ratio, as I don't think 3arc would have made the ratio vary between different players.

I've lost my iron boards perk. I suddenly build regular wood again.

I had the deadshot perk but then I almost got trapped so I started spraying randomly. As I did this I heard a strange sound and I lost my deadshot. Also another time when a nuke appeared some of the green smoke came with it. This was different then the power ups normal aura and later on I seemed to be getting more power ups.

someguy28898 posted...

I've lost my iron boards perk. I suddenly build regular wood again.

Yea! This happened to me too. D:
I was on steel bars and stuff when i noticed that i didn't have it anymore i had wood.
Which was strange... Are you guys checking this right?
---
Rainbow Dash is best pony.
brohoof anyone? ^-^ /) ? # of Brohooves gotten-142! :D Started Feb. 2012

NinjaDeath911 posted...

dario1101 posted...

someguy28898 posted...

I've lost my iron boards perk. I suddenly build regular wood again.

Yea! This happened to me too. D:
I was on steel bars and stuff when i noticed that i didn't have it anymore i had wood.
Which was strange... Are you guys checking this right?

That is what I'm saying, noticed the same thing last night

I've achieved and lost all 3 "permanent" perks a couple times over, last night I got and lost the Iron Boards twice in one game. Real curious what the actual deciding factor is on these. At one point I kept iron boards for several days without losing them.