Mission 5: Fallen Angel
Intel Item 1
Near the start of the mission, when you and Harper get the CLAW named Maximus moving, look to the right of the room you are in and the intel item will be on the shelf.
Intel Item 2
After you and Harper jump down the alleyway to avoid the bus that comes floating down the street, duck into the small opening on the right and the intel will be on the ground right next to the entrance.
Intel Item 3
Once you pass the two spotlight drones, you will finally get to dry land at the end of the street. Before going through the opening in the wall to the right, go forward a couple steps to find the intel on the ground there in the dark.