Run to the living room, grab two batteries along the way

Grab the flashlight in the living room under the TV

Enter the room to the right of the living room, maybe the study. Grab all items, including the key on the left of the room

Head up to the attic door and enter code 2794.

Grab the key and the battery in the armoire thing, the ammo on the table, the glock, and the ammo on the ground. Exit.

Head towards the house's front door, killing the two zombies.

Enter the bathroom on the right in the hallway, grab the key from the toilet and the health pack from the cabinet. Bind the health kit to a shortcut in the inventory.

Enter the basement with the key, kill the zombie, loot all the items

Unlock and enter the next room, and proceed through the blocked vent

While inside the vent, now is a decent time to reload the flashlight if you want to. Open inventory and combine the batteries with the flashlight

Take out all enemies in the tunnel while heading to the left area (Security Room)

Loot the security room

Leave and enter the main tunnel, take out all enemies and grab ammunition

Head left down the tunnel, and take a left - killing all enemies.

As you continue along, grab all ammo.

You'll come to a 4-way area, take a right and grab all the ammo. Back up the stairs to the 4-way, continue straight (left from where you were standing originally)

Listen to mother and go right, taking out all enemies.

There's a side area with some additional ammo if you want it, it's on the left side as you continue down the tunnel.

Grab the shotgun at the end of this part of the tunnel, this will spawn an ASSLOAD of enemies but it's required for now. Grab all ammo in the area around the shotgun

Head back down the tunnel taking out all enemies, I suggest when you see enemies at range to take them out with the pistol, and swap to shotgun as they get closer to you.

Proceed forward to the final room, preserve as much stamina as you can before entering

Absolutely book it to the far left corner, the yellow metal door is the end trigger. Have the shotgun out to blast anyone in your way

GG