Finding A Base

After using the map to route a plan out for us I've come to the conclusion that we need a base to defend and build up. So I quickly look outside the window, looking for a well defendable building for us to use and just as i was looking around i see a old storage facility that has been abandoned for around 5 years and it's been mostly emptied out and I remember around 1580 years into the future that was my 3rd base which lasted me 2000 years. I remember that it's 4000x6000 square miles with 6 doors and well built foundation with a tunnel into the sewer system. So as my friends and my sister wakes up I quickly say "I found us a base of operations to use" as they look at me weird as if they are confused. Then by no surprise that look of confusion turns to regret. I ask them what's wrong and Adam replies "I need to go check if my family's alive" I say "that's fine but if you come back alive were going to the abandoned storage facility and who else wants to go?" Skyler says "I'm staying with Addison" Natalie says "I'm staying with you Natu-san" as i go to ask my sister she hugs me and says "Don't even ask you know I'm staying with you" as i go to ask matt i see he's packing up with Adam so i say "I'm guessing you're going with Adam?" Matt then replies "Sorry but i need to find out what happened to my family" I say "Its fine just remember to come find us if you make it out alive" as we pack up we hear gun bullets from outside the school gate so we run over to the window to see and we see the meanest teacher in the school shooting zombies and we all just watch as a zombie comes up behind him and bites his throat out and blood splatters everywhere like a fountain. After that we continue to pack up and start to head towards the door as we heard a loud thump like an elephant walking, We back up and see a zombie barge it's way into the room and send our barricades flying. A desk flies towards Adam and cleanly takes his head flat off and I yell "Run" as we run around it, it grabs Matt and bites into him. Then me Natalie Skyler and Addison all run away and we run towards the front doors but we see someone locked the doors so we head up to the roof to go down the fire escape. When we reached the roof we saw the mass of zombies between us and the school gate, We decided to stay on the school roof for a couple days. As we are the I teach them how to cultivate, Which then leads us to all Cultivate.