Sorry when I first uploaded I fat thumbed and posted the full raid. sorry about that.
Welcome to Warrens 6-19
The puzzle is located right before the first elevator.
Start by going into the alley way across the road from where the bar is.
There will be a corpse there with a key. In the case here though a teammate has already grabbed it.
This key will open the gate on the left hand side of the bar, go through it and push to the end.
Grab the key there, the key there unlocks the gate behind the bar with the skull in it.
now you have the skull and the plasteel, gratz, bye.
