Bioshock Infinite Walkthrough Part 38: Guns For The Lady (Bull Yard: Police Impound)
There are a lot of places to search in here so it is important to start at the top and work your way down. You will find Chen Lin's Tools down in the bottom of the basement. Also, things start very peacefully, but when you cross into the main lobby is when you need to start worrying about Founders and more once again.
Going through the main door you will find the entry hall. Go forward through it and over to the right into the first office. Just inside to the office, to the right of the door, you will find the Kinetoscope “Fitzroy Spotted!”. It sits between the 2 desks. Be sure to loot the desks as well to get everything you can from them. Be certain to grab the Lockpick that sits on the second desk. Grab everything in there then head through the double doors leading into the main lobby.
Directly in front of the duo you will see a tear that opens up some cover. Have Elizabeth open it immediately. This will ensure that Booker does not immediately get gunned down as he enters the lobby. There are a good number of Founders to deal with in this room and you need to be ready. They are not your only concern as there is a Motorized Patriot will join the fray toward the end of it.
Start in cover and pick off everyone on the first floor. Once you have some breathing room run over to the right. You can find another tear which opens up to a crank gun. Head over to the left now and up the stairs. There are plenty of foes for you to face and with the Crankgun they are very easy to simply gun down without too much effort. Just seek cover when your shield breaks. It will thin out the herd nicely and make it simpler for you to deal with the next wave that comes in on the first floor.
The second wave is nothing too hard as it is more Founders. Use the Crank Gun or whatever you have to gun them down quickly. Be careful as they are followed by a Motorized Patriot. When you hear it start talking immediately make for the stairs or throw a Possession at it to buy yourself some time. With that quickly shoot out its exposed gears.
With the fight over it is time to start going over the area for loot. Start by going to the back left, you will see some stairs, but ignore them for now. Instead turn to the left and head toward the interrogation room. Look underneath the table you see to the left of the interrogation room entrance proper. You will find a Voxophone sitting there: Daisy Fitzroy “Terminated”. Now head into the room to the right and look on the table to find some Lockpicks. Head over to the right-hand side of this ground floor now. You will find a safe in the room with all the desks. Loot it for some Silver Eagles and Silver Bars.
Time to head on up the stairs over to the left now. Head into the doorway to the left. You will see a window and to the left of it a locked door (5 picks). Break into it with Elizabeth's help. Inside you will find a number of Carbines, a RPG on the floor and on the table a Gear Box and an Infusion.
Head over to the right along the walkway toward the top middle part of the room. Head into the second office on the left. There you will find a chest to the left of the desk. Open it up to find an Infusion, this only works if you have the Key you can grab from the barrel nearby where you crossed over into this Columbia.. Look on the desk next to find a Voxophone: Wilbur Sykes “That Goddamn Key”. Now turn around and look on the floor nearby the divider. On one side of it you will find a Lockpick sitting there. Now continue along the balcony into the Locker Room. Head into the back right part of it, the dimly lit room with 2 sinks and a shower with a bench. Look on the bench to find another Lockpick. That covers the upper part and middle of the Impound Building. Time to head down.