ZombiU Hardcore -- Return to Vikram's, Collect Two Dee Letters & Magnum

Video walkthrough

The fastest way to get back to Vikram's after you've returned to the Safe House is by way of the nursery manhole. Just climb up to where you had to climb up due to the locked door below, exit the door and take the door to your left. Then go back the way you came from Vikram's.

TIP: Don't forget the upgrade in that staircase, either, it's easy to miss (between the manhole and the door above).

If you cleared the place out before there's no zombies here left to kill. As soon as you pass through the gate that was once locked, a girl starts crying out for help through your comm channel. She's setting you up for St. George's Church; just continue on into Vikram's.

A Nasty Business, No Mistake

A pad upgrade is on the desk, and that upgrade is your key to the petrol. Vikram, unfortunately, has turned and is gobbling on his son when you come in. Kill him. When you exit the building, turn left instead of right, turn the corner of the building, and unlock the gate there. Pick up the petrol, the pump-action shotgun, and the weapon upgrade, then go into the door where you'll find stairs leading to another manhole. Don't go further; instead, turn around and go back out the gate. Go straight past the two cars and through the narrow passage ahead, up the ladder, and down the ladder to the right. Cross the park following that wall to the gate you couldn't open before -- your pad upgrade lets you open it now. Open it and and get the Dee letter and weapon upgrade within.

Dee letter and capacity upgrade in hand, turn around, go out the gate, cross the park, go back up the ladder, and get the weapon upgrade if you didn't before. Go back down the first-mentioned ladder above towards Vikram's and get the goodies inside the room behind the coded door halfway up the stairs if you haven't already, The code for the locked door is accessible around the corner from the shelter by scanning behind a tarp on the wall of the next building over -- you can see from the video walkthrough that it's also accessible from a certain spot on the ground.

WARNING: If you haven't been up here before, there's a zombie at the bottom of the ladder near the Ravens' shelter, so let him climb up to you and then kill him before going into the shelter. You can also kill him from below through the gate -- he can't open it.

Second Dee Letter and Magnum

After saving the game, return to the nursery area. You'll find a spitter near the doors, over by the explosive barrel. Kill him without going too far from the doors, because just over the hill is a flame zombie. Next, kill the flame zombie and lastly kill the regular zombie nearby. That should be the only resistance between you and the shack near the nursery's front entrance and playground. Open the shack with your pad upgrade and you'll find the magnum pistol and a Dee letter.