I was playing the campaign yesterday and on the second level you have to infiltrate some sort of base in the mountains. Then you find a scientist who brings you over to something called a "Quantum Entanglement Device" (QED). Sound familiar to anyone? Is this just a reference, a lapse of memory or is it actually part of something bigger.
Unfortunately, after continuing the campaign I found no other zombie references of this nature, in fact I only heard Quantum heard once more throughout it. I wish to conclude that this is simply a small reference by Treyarch, although I wish it was somethi