3 Surveillance Recordings, 4 Documents, 3 Secret Bags
On the rooftop where the 'Break and Entry' side mission starts, climb to rooftop left of the graffiti to find the document.
Surveillance Recording 1
Under some stairs up the side of this building, near a C7 sign.
Secret Bag 1
On this corner is an access route up through the scaffolding, so keep following the footprints on the walls to work your way up to the top where the bag is.
In this rooftop area surrounded by billboards, look next to the large air conditioning unit.
Secret Bag 2
Around the same location (which is also the start of the 'Mischief Maker' side mission), jump up the wall where marked with footprints then walljump to the pipe above. Now climb on top of the building and drop down to the pipe on the other side to grab the bag.
On this rooftop looking across to a crane in the Development Zone, check at the foot of the tall billboard.
Surveillance Recording 3
Head to the 'Concrete Canyon' Dash near the safe house, then look at the bottom right of the large billboard.
Secret Bag 3
From the same Dash marker, go down the alley and climb up the wall on the right. Now do a wallrun/turn/jump to get up the tangle of vents above, then jump to the opposite vent to reach the bag.
Swing over to the next building, where the document is leaning against a pipe near the edge.