There are a total of 15 Destructible Objects located on Bleake Island and they can be found in the following locations:
Breakable Object 01
Map Co-ordinates: 1562, 2188
At the top of a wall adjacent to an overhead bridge at the location specified. This is located between the ‘Royal Flush Gang’ and ‘Grinning Fishmonger’ signs.
Breakable Object 02
Map Co-ordinates: 1799, 2118
Near the top of the wall by the ‘Happy Halloween’ billboard on the building just northeast of the Bank of Gotham in Chinatown.
Breakable Object 03
Map Co-ordinates: 1907, 1927
Just to the left of the large red ‘Urbarail Station’ sign on the northern wall of the Chinatown Urbarail Station building.
Breakable Object 04
Map Co-ordinates: 1996, 2236
This shield can be found high up on a building in Chinatown, at the end of the road between the ‘Sushi’ building and the ‘Tattoo Parlour’.
Breakable Object 05
Map Co-ordinates: 2062, 2342
Near the top of the building directly east of the eastern part of Oracle’s Clock Tower. It is also facing the Clock Tower!
Breakable Object 06
Map Co-ordinates: 1922, 2506
This shield is hard to spot and is located near the top of the wall inside a small alleyway behind the ‘McKenzie’s Gems’ sign.
Breakable Object 07
Map Co-ordinates: 1744, 2565
This militia shield is mounted on a wall just by one of the entrances to the sewer tunnels inside the empty canal.
Breakable Object 08
Map Co-ordinates: 1667, 2513
This shield is located on the south-west wall of the Dixon Dock West compound. You’ll need to shoot it from across the water to the south.
Breakable Object 09
Map Co-ordinates: 1539, 2815
This one is mounted on a wall facing the road beneath the radio tower directly north of the northern corner of the Panessa Studios building.
Breakable Object 10
Map Co-ordinates: 1563, 3083
From ground level, this can be found near the top of the gate on the northeast side of the Panessa Studios car park (we had to manoeuvre across this in Battle Mode early on in the game).
Breakable Object 11
Map Co-ordinates: 1713, 3190
This militia shield is on the wall of a bridge support by the off-ramp leading to the dirt path for the lighthouse.
Breakable Object 12
Map Co-ordinates: 1798, 3034
This one can be found on the side of a raised walkway inside the monorail station to the east of Panessa Studios.
Breakable Object 13
Map Co-ordinates: 2130, 3076
This shield is situated on the supports of one of the cranes located near the back of the Sionis Industries compound.
Breakable Object 14
Map Co-ordinates: 2242, 2759
This militia shield is near the top of the wall on the southern side of the building across the road and to the northeast from the GCPD HQ.
Breakable Object 15
Map Co-ordinates: 2397, 2694
On the eastern wall of the GCPD HQ building.