In the game, there is a total of 18 laptops with intelligence data, after the collection of which you receive the Audiophile achievement. In each mission, there is one laptop - below you can find a description with screenshots, which will help you find them.
Rorke File #1 - Ghosts Stories
Right after you return onto the ground and dash out of the house with Hesh, turn your attention to the house on the right of the street. Dash into it - inside there is the laptop with the intel data.
Rorke File #2 - Brave New World
After you reach the base, follow your brother to meet up with your father. He will invite you over for a talk, onto the upper floor. Once you get behind him, turn right - on the desk, right in front of you, there is another laptop.
Rorke File #3 - No Man's Land
As a matter of fact, you cannot miss this one. While following Hesh, enter the building where you receive, over the radio, warning of the approaching enemy forces. The laptop is on the desk, next to the exit that you will soon take to leave.
Rorke File #4 - Struck Down
Together with your squad, you will enter a room that you will throw a grenades with tear gas into (A moment before you reach the Ajax). After you storm inside and deal with the enemy, turn left - the laptop should be inside one of the wardrobes.
Rorke File #5 - Homecoming
The laptop is right at the beginning of this mission. Follow Hesh until you reach the house with your father inside. Instead of climbing up the stairs, turn left of the stairs - the fifth laptop with the Rorke File is in there.
Rorke File #6 - Legends Never Die
After you and Rorke, deal silently with the two enemies, pick up the weapon under the water and continue following your companion. You will reach a room where there are another two enemies - Rorke will give you carte blanche to deal with them. After you do, approach the spot where the enemies used to stand - on the desk, there is the laptop with the data.
Rorke File #7 - Federation Day
After you cut a hole in the glass pane and enter the building, instead of following Keegan into the server room, go left into a small office. On one of the desks, there should be the laptop with the data.
Rorke File #8 - Birds of Prey
In this mission, the laptop with the data is at the very end of the stage, in the room where your squad catches Rorke. It is on the desk against which Rorke was leaning at the moment that you entered.
Rorke File #9 - Hunted
To reach the intel data here, you need to keep to the left side of the map right from the beginning of the mission. After a while, you should notice a small waterfall in the distance - follow the water current to reach the laptop with the data.