I found this while messing around with the map. I still don't know what it is or what it means. Is it related to the Interloper ARG? Maybe serverblight? Nah, probs not. I tried to put the numbers in the console, but of course as expected, it came back as nothing since it isn't a proper command starter in Source Engine 2013. I don't know how to embed a screenshot in this though, so you gotta find it for yourself I guess. Its near that tiny version of the map thats also in the skybox that was for the thumbnail presumably.