Data Pad 10: Only Legendary difficulty
When you get out of the falcon at the start of the mission you have to quickly sprint down the hill towards the large gate you saw on your flight in. A camo elite will be running away towards the path you must take to the first house. You must kill this elite and he will drop the datapad.
Data Pad 01: Any Difficulty
After you get in the first truck you drive towards your first objective, the datapad is in the first building to the right of this structure on the floor next to two bodies.
Oni: Sword Base:
Data Pad 11: Only Legendary difficulty
After you leave Sword Base you get a warthog. Head left to the small compound with the two semi-circular buildings. The ones with the generator, and the antenna. Go to the top of the building with the antenna. You will see the small bridge once you get to the top of the stairs, which leads out to some rocks across from the building. Jump the broken bridge and the data pad is right in from of you at the back of the rock.
Data Pad 02: Any difficulty
Back in Sword Base after the hunters and elevator, you end up in the Sword Base multiplayer map. Go up to the red room where the shotgun spawns in multiplayer and the data pad is under the stairs.
Data Pad 03: Any difficulty
Once the mission starts hug the right wall. You will come to a small route through the rocks, this datapad is in the left side of this route.
Data Pad 12: Only Legendary difficulty
After that hydro plant area where you meet some rebels, head down the river and you will see a grey arch above you near the end of the river path. Use the rocks on the right to climb on top of the arch, then turn around and you will see a ledge on the left with the datapad, sprint jump to it and collect it.
Tip of the Spear:
Data Pad 04: Any difficulty
Progress through the level until you get to the end of the mining company area. Right after you drop through the room after the zealot you will be in a room with an ordnance marker, turn left and behind some green crates will be the datapad. *before you hop in the ghosts/revenant.*
Data Pad 13: Only Legendary difficulty
Right after the last datapad, you will come to a destroyed bridge before the second anti-air cannon. As you drop down you will see a warthog and a dea marine on a strip of bridge/road that is still intact. Jump up one of the pillars and onto the bridge to collect the datapad.
Long Night of Solace:
Data Pad 05: Any difficulty
In the building after the beach fight, you will get to a room with a corvette ship hologram. Turn left to the area with servers and a red light. Go up the steps and on the left is the datapad.
Data Pad 14: Only Legendary difficulty
Just after the last datapad and before you hop into the saber. At the foot of the yellow stairs before the saber look to your left and you will see a platform with a grey light. Jump to the platform. Here walk up the slanted leg of the light and crouch jump onto the panel on its backside. From on top of the panel look away from the saber and you will see a large grey ramp. Jump to the bottom of the ramp, then walk up the ramp to get the datapad. *Picture shows the bottom of the ramp after the light jump.*
Data Pad 06: Any difficulty
After you get a jetpack and cross the gap you will have to fight a lot of brutes. After the fight at the top back area of this large area is a red room with the objective right in front of you. Look up to the walkway above this room and you will see a datapad next to a dead man.
Data Pad 15: Only Legendary difficulty
After you jetpack to the top of the inside building balcony you will exit to a large area with focus rifle jackals and a fight to the tower with the falcon at the end. On the right side of the building across from the falcon building, you will see a cut out in the side with pipes and two vents at the top. Use the jetpack and the white beams to climb up to the top of the vents and claim the datapad.
Data Pad 16: Only Legendary difficulty
Once you hop in your falcon turn around and drop down to you see a large cut out on the building behind your spawn. Three quarters up this cut out you will see another cut out with no windows. At the end of this cut out is the datapad. Wedge the falcon up against the building and hop out and collect the datapad.
Data Pad 07: Any difficulty
Fly to the Oni building (the large building at the end with the turrets around it). on the far side of the building is a tall building with a large section cut straight through, with beams, and a slanted curved roof. On the far side of the roof at a black door is the datapad.
Data Pad 08: Any difficulty
Progress through the level until you reach Sword Base. At the door, you go to progress the story and go under the glacier DON'T press the door button. At the door look to your left and it is on the ground.
Data Pad 17: Only Legendary difficulty
When you are under the glacier grab a jetpack on the right side of the door to Halsey. Turn around and jump along the rocks on the far side of the first turret. Run to the back of these rocks. Jet pack to the rock underneath the right side of the train tracks.
The Pillar of Autumn:
Data Pad 18: Only Legendary difficulty
Progress through the level until you get to the part of the level that is the boneyard invasion map. On the far side of the ship in the middle of the map is a room with silver grates on the roof that you can drop down to run past the final room before you leave boneyard. Use the stairs with the yellow railing on the left of the map and climb up the conveyor belts with the brown roofing to run to the end of the silver grates and around the corner to the left to nab the datapad.
Data Pad 09: Any difficulty
Once you leave boneyard through the doorway into a corridor. In this corridor, head left and you will see a room with two glass windows. Shoot the glass out and crouch jump inside and the datapad is at the back of the second room on a desk.
Data Pad 19: Only Legendary difficulty
Once the level starts run to the far side of the armor lock building to where the large pipe is with the drop shield next to it. Climb onto the metal flooring and then use the red poles on the left side of the pipe to jump around to the pipes open-end and look inside to see the pipe inside the grate at the end of the pipe.
*Image guide made for Xbox users whose TrueAchievements app does not play videos*