I'm more or less speechless, as I've tried every thing in my power to trigger orbs and how to deal with them.
You definitely don't need to tell me about how Treydarsch may have hidden code or buried an EE (or perhaps multiple imho) in order to keep hacks out. I do believe that the blue eyes equal something. From August:
If it means that in order to get an orb on the lower portion of the tower one must decrease their own tally rank... That to me means BO2 zoms is exactly the disappointment that everyone has been led to believe. I, luckily, have not been driven to that point. I believe there are still secrets in Tranzit. But for me to believe there are secrets in Tranzit, there must also be more to the other New 4 maps. The nav cards/tables aren't useless. The quotes about returning to Tranzit aren't useless either. Returning to Tranzit with the Buried nav card isn't useless either. There is a bigger picture to all of it, and perhaps the orbs are the beginning. Perhaps we haven't even dug into what it really is yet. I'd say that's a great start.
Either that, or this is the most unfinished, flop-of-a-game that ever existed.
The question is not how to spawn orbs. It's about what the blue eyes are really for. Maybe...