I'll be damned if this is not just a spill over communications point for their game. Not sure which one.

International game where each side is actively hacking the server networks to find out secrets from the opponents. At that point, you create alternate communications networks outside the game to keep the strategy away from your opponents. The alternate communications must be in code, or it will be decoded.

Multiple alternate sites need to be put together in case the current one is compromised or you give bits of the info through different sites