survival in the apocalypse

You're studying to be a designer and writing your book in your free time. It's Saturday, and your favorite metal band, Rivera, is performing. You arrive calmly and are having a great time, but suddenly soldiers rush into the building and point guns at the civilians. You were sitting in the corner of the room and saw an emergency exit. You go out and go down a spiral staircase, but a soldier catches you and sends you to the basement. There was also an old man and a woman in the basement. You saw an emergency exit on an old map of the basement. You found it and went alone to check if there were any soldiers there. You've been walking for 20 minutes now, but you can't see anything.
Suddenly you realize that there is nothing under your feet and that you are falling somewhere into a hole. You fell, but to your surprise you didn’t crash, you just passed out.
After you woke up, you were bleeding, you were in pain, and you lost consciousness again.

You woke up near a fire, you were tied up, and a man was standing next to you, washing the bloody bandages.
You: Hey!...
John: Oh! You're awake!
he woke up and turned around
You: Why the hell am I tied up?!
John: I needed to know if you were infected.
You: What? What other infection?
Jen: Don't you know?
A month has passed since the epidemic.
You: ???
John: Are you serious?...

It turns out you've been unconscious for a week now, and there are a bunch of walking corpses on the street, caused by the war and radiation from the shells.