Either way you will have to go back to the safehouse. Do so and speak with the prepper. We have to find fuel now because the generator will blow out leaving us in the darkness.
Start out following marker, all the way towards the first level of the game brick lane markets. If you were exploring you probably seen this area before. You might have even stumbled across the code.
Look inside the shed with the scanner and decipher ability. Scan the first two numbers, then scan the next two right outside the shed. Arrows will be pointing towards the clues ONLY when you are scanning are they visible.
Once you get the code, go through the door and follow the marker to spitalfields green.
This area is covered with mines and also there will be a computer or jammer, that will corrupt your prepper pad. Search and destroy the jammer.
Now you should have your radar back, making mines visible as well as zombies. Tread through the mine field while following marker taking out zombies along the way.
The marker is easy to find, yet there will be tons of zombies dispose of them all then head towards the gate.
The gate must be lockpicked, don't pick it until the area is clear. Once its clear head inside the door.
You will meet Vikram and his son, he has gasoline, but he needs you to get antibiotics first. They are in the nursery area.
Proceed by following marker to nursery.
Scary area , made me stop playing for a little bit honestly.
First thing you want to do is take out zombies. THEN look for the CCTV junction box. This is the hardest one to find in the game for me at least.
Head down the first flight of steps, at the end of the stairwell look inside with the flashlight. You should see a hole. Follow it it will lead to the room with the junction box. If your still lost this door is barred on the other side.
With this information follow the marker into the basement. Deal with the teleporting zombie. See enemy section.
Then scan the area for the key code, you should find THREE numbers here the rest will be trial and error. Inside the door will be the Sub Machine gun UMP45
Escape the Nursery
Follow marker from this point to get the antibiotics.
The escape begins here, the best place to escape to is probably the main door. I would only take out the zombies if I had the fire power or loved high scores.
Retreat back to Vikram.
At this point you will receive the St george chruch quest, which is part of the main story line. For now continue with the Vikram quest.
Once inside Vikram's house, he is now infected as is his son. Kill him. Then pick up the quest item, which is the hack for the prepper pad. We need this to move foward.
The Gas Tank is Real !
Around back of Vikrams will be the marker, a shotgun and the gas tank. Take them both. Right next to it is the safe house symbol door. Go through it to the safe house.