Rex, You wake up in a small outpost separated from the rest of the city, you see a marketplace, a notice board, the scrap yard, and the sealed off gates towards the city.
Sam, You wake up in a small house in the city. You are lucky not to be infected, but your chances of surviving here are growing weaker as you stay longer in the city, the zombies are picking up your scent and are growing stronger. You have to find the outpost.