Incident 68A-B

Humanity fell within days. In the one settlement left in the United States, the one in the entire world-S.W.A.T patrols the streets constantly. The army defends the outer walls. Multiple distress signals were sent to Mars, but none have been answered. Innovation Incorporated has sent assassins to kill any survivors, thankfully, they kill zombies as well. They typically won't take a target head-on. Choose who, or what, you are in this apocalyptic wasteland.