The collectible is in a cage that is difficult to access. The only opening in it is in its Eastern wall and you cannot use the hook on it. As a result, you need to glide towards one of the nearby, taller buildings and try to glide into the small opening shown in the screenshot. After you do that, collect the Datapack.
Use the Shock Gloves on the generator on the ship's deck and walk onto the first pressure plate. From now on, you have 40 seconds to solve the puzzle. Aim at the mast shown in the above screenshot and use the hook launcher.
After Batman starts gliding, perform a turn in mid-air and target the second pressure plate shown in the screenshot, which is located in the North-Eastern part of the ship. Land onto the plate.
Again, use the hook launcher to catapult yourself. This time, land on the pressure plate on the ledge above (the screenshot). You can now use the claw and grab the Datapack at a distance.
Note- While completing this mission, you cannot walk off the pressure plates! The only thing permissible is using the hook launcher and gliding.
Start to the North-West of the collectible. Target the venting shaft shown in the screenshot and throw the remote controlled batarangs inside. Make the batarangs fly through the entire shaft and press the green button. You can now hop over the fence and collect the Datapack from the newly opened box.
Datapack 7 (The Final Offer ship)
You can find the collectible in the Northern part of the sip's Upper Deck. First of all, make sure that you have ripped off the fragment of the ceiling shown in the above screenshot. It is a step that you cannot miss, because it is a part of the ship exploration during the game's main campaign.
Backtrack to the south now, and stop at the gate shown in the screenshot. Select the remote controlled batarang from the inventory and throw it towards the discharges, thanks to which it will charge. Make the batarangs fly through the hole in the ceiling and hit the fuse box on the level above. You only need now to reach this place and collect the Datapack from the newly-opened box.
Datapack 8 (The Final Offer ship)
The collectible is in the Deck Access Corridor that connects the Boiler Deck with the Upper Deck. You need to reach the big vertical area where you use the hook to reach the ledges above. Stop right after you walk onto the balcony shown in the above screenshot. Use the cryptographic sequencer here, to unlock access to the Pump Room 2 (the correct password is TONNAGE). Walk inside and pick up the Datapack from the ground.
Datapack 9 (The Final Offer ship)
The Datapack is above the Boiler Deck (the first big location that you visit on the ship), on the shelf shown in the screenshot. To reach there, you need to extend either of the two ropes and pull yourself to it using the grapple and the hook.
Datapack 10 (The Final Offer ship)
The collectible is in the Casino. Explore the Northern part of that location to find three Dollar symbols, which you need to hit with the regular batarangs. Wait for the game to reveal the Datapack and grab it at a distance using the claw.
For finding all of the datapacks, you are rewarded with the audio file connected with Branden.