I fended them off for a good while then left the place i was using as my fort. I was testing to see if I had any amo in any of my guns and I shot the store lady thus making everyone pissed at me. I gave up and walked back to buy some more ammo. I had no idea what to do/where to go and whenever I went to where the marker was it lead me to a dead-end subway station. At first everything was fine up until you get to the first town.