Schwarzkommando and the Zero

During my reading, I've found that the Schwarzkommando seem to exist between the one and zero of existence; they seem to be in a netherworld between existence and non-existence. At PISCES, the Schwarzkommando's existence is accredited to a summoning through the creating of the Schwarzkommando movie: "it is widely believed that the Schwarzkommando have been summoned, in the way demons may be gathered in, called up to the light of day and earth by the now defunct Operation Black Wing." Enzian isn't even sure of their existence, on page 367: "Our chances of being right here right now are only a little better than even - the slightest shift in the probabilities and we're gone - schnapp! like that." In being "passed over," they were granted a new lease on life, but not a normal one. They live in caverns, not interacting much with the outside world in the zone. I'm curious to see how the Schwarzkommando develop as the novel progresses, and how they bring about their aims.