I checked my WF inside Strike Force. The wrapping is oily (I remember it was oily when I received the Strike Force and pulled the WF out). When I was checking toughness of the seam (not tearing it at all or something) a hole appeared immediately. I suspect there had already been a small hole and I just enlarged it.
The cube is wrapped in grey foil. The Strike Force is from 4/2008. I havenīt tried to light the WF yet. Anyway I am changing the contents of the Strike Force compartment.

JohnN: Thanks for the videos.