Intel #7) After the slo mo breach through the ceiling, stay on the left to find the first intel past the open air section of the office building.
Intel #8) After first narrowly avoiding the white truck with the turret, run up the stairs on the right, then drop down and follow the stairs on the left around to a room with vending machines and the second intel.
Intel #9) After terminating the turret gunner on the white truck, there will be a climb objective. DON'T CLIMB. Right by the climb marker is the third intel.