Chapter 17 - Bull Yard Impound

At the beginning of chapter (the spot where the game autosaves), proceed past the gate and turn right into a small room with a kinetoscope. Clear the lobby of enemies after tearing in the cover.

Explore the first floor keeping an eye out for large "Columbia Police" emblem on a pillar. Turn left into the room right next to the interrogation room and pick up a Voxophone under the table.

Moving forward to the second floor just past the medical kits, turn into one of the corners and you'll find a door that requires 5 lock picks to open. Inside this room is an Infusion phial and a Gear. There is another room past the medical kits on the second floor that contains a locked chest; the key for it is found in the basement of the Graveyard Shift bar back in Shanty Town. The chest houses another Infusion phial. Don't forget to grab the Voxophone in this room as well.

Next stop is the basement. Clean out the freebies then follow the arrow to a dimwnsional tear. Be absolutely sure that you have all the collectibles here in hand as you will not be returning to this location again. Open the tear when you're ready. Armed Revolt trophy / achievement unlocked.

Grab a Burst Gun for keeps if you like then go upstairs through several staircases to reach a room with a Voxophone on the police table. Head back to the Bull Yard. Assist the Vox Populi in their fight against Comstock's goons. These Vox soldiers are your allies for now and shooting one of them will cause the lot to turn on you. That said, battle your way back to the Graveyard Shift Tavern.

There, you'll find a dead Handyman on the street. Check the corpse for a Voxophone. Enter the bar now and on the counter is yet another Voxophone. Take the elevator back to Finkton Proper.

Now as soon as you step out of the elevator after the loading screen, make an immediate left into a smashed trolley to retrieve the Charge Vigor. Kill off more enemies on your way to Chen Lin's Gun Shop in Plaza of Zeal. A Voxophone is on a shelf when you enter the shop. Look at the body.