The ONLY reason I am posting this (and only after an extensive Twitter poll about it) is so that Treyarch can patch it as quickly as possible.
If this is NOT a new glitch (and I did Google it and really only found masses of location-specific glitches) then obviously we have not made enough noise about it. Let's ensure Treyarch is fully aware of it and that we want to get these things patched!
To Treyarch: if you wish to de-rank my account because of this, please ensure it's my PC Black Ops 2 account where this was recorded...okay? :)