First Base is the safest chamber within Nanjing City; if there is any place safer than it, it would only be Second Base.
Inside each of the two bases, there is a data center, a gift sent to the future by people, and the only witnesses and recorders of the apocalyptic disaster. The two bases will survive calamities and last to the very end, becoming the only database Ban Xia can access in the post-apocalyptic era.
This is a vast reconnaissance operation, and the reconnaissance soldier will advance alone through the river of time. Humanity will perish in the disaster, but the bases will not. They will traverse through long periods of solitude, waiting for the one they've always been waiting for, hoping to unravel all mysteries and find a sliver of hope from it.
This is what they call PlayerUnknown's Battlegrounds, no more, no less.
And what Ban Xia needs to do is very simple: she just needs to enter the base and wake up the dormant computer.
