here's a text guide I created from other guides. credit goes to Zasta 360GameTV for the mission list & AdvsInfinity of gamefaqs for the item & chapter location list.
Mission 1 - Hyperion Base
*** Spoiler - click to reveal ***From the Office of Dr. Abraham Monday - Casual Friday - In Hyperion Base's first room after the opening encounter with the Enforcer bot, cross over to the other side of the reception desk and it is lying on the ground next to a dead man in a hazmat suit.
Dr. Sam Reed - Casual Friday - In the room of the turret that goes crazy and kills two hazmat suits, to the right of the turret.
Sergeant Bryan Castle - Casual Friday - After receiving the team's Xenotech weapons, the Intel is on the opposite side of the room from the shooting range with the pigs, on a counter in the middle of the corner lab room.
Fuse Cells - Future Proofing - When you're prompted to perform a stealth kill on an unsuspecting soldier do so then turn about 90 degrees to the left to find the Intel between a couple dead hazmat suits.
Dr. Lincoln Wobash - Future Proofing - After the second Stealth kill room (the one with snipers and the Fuse cell machine) head down the elevator and enter the room on the left (red and white room with another firefight) In the back of the room behind the stairs on the left there's a window you can jump through and the Intel is inside.
Magshield - They Came... They Saw... - After going through the hallway with the two flaming rooms, keep to the right to find the Intel next to a dead hazmat suit.
Immediate Resignation - They Came... They Saw... - After crawling through the first vent, open the door and the Intel is next to a dead hazmat suit in front of you.
Mission 2 - Triton Outpost
*** Spoiler - click to reveal ***A fond Farewell - Worms in the Apple - Immediately after regaining control of the team head towards the second set of four cells, the Intel is in the second cell on the right.
Shattergun - Worms in the Apple - In the armory where you retrieve the team's Xenotech weapons the Intel is on the counter in the corner.
A Message to Naya - Worms in the Apple - After dealing with the room with 2 stationary turrets, go on the second level and head to the back corner of the room opposite of the turrets, take the ladder up to the third level catwalk and in the corner room you land in the Intel is next to a dead soldier on your right.
The worst Monster - Worms in the Apple - When you defeat the Leadfoot and take his Behemoth gun, go down the next hallway to the room at the end, the Intel is on the counter on the raised section of the room.
The End of Days And I Gazed Into The Abyss... - Just over the first set of stairs from the train on the far side of the room, near where the riot shield guys make their first appearance.
Daltons Brooks - And I Gazed Into The Abyss... - After cutting through the first pipe and fighting the soldiers on the other side as well as the seeker swarm beyond them at the bridge, run to the left side of said bridge and jump over the railing so you're hanging off the other side. Shimmy over to the window nearby and jump inside that room for the Intel.
A shady Character - And I Gazed Into the Abyss... - Just after the zip-lining away from the reactor down to the elevator, walk over to the right side towards the Harbinger locker, the Intel is there on a crate.
Corrupted Fuse - Kicking the Habit - After reaching the bottom of the chamber where your life is threatened by a chemical laser, look around for a table cart with Fuse credits on it and the Intel is on a desk to the right of that.
Ivan Sovlenko - Kicking the Habit - Right after stopping the Chemical laser from killing you head into the next room where the objective is to interact with two consoles on either side of the room. Stand near the door you entered from and look over to the left and the Intel is on a desk about 10 feet away.
Mission 3 - Sheng Island
*** Spoiler - click to reveal ***Meilin Mao - Matches and an Old Flame - After fighting your way through the docks with the sub at the beginning of the chapter go to the armory under the stairs the team is told to rally to. The Intel is on the desk inside.
Isabelle Sinclair - Matches and an Old Flame - When you Zip-line across the broken wood bridge and climb all the way up to the ledge above, hug the invisible wall left down the stairs to the landing below and the Intel is on a crate at the end.
A Soldiers Regret - Matches and an Old Flame - After fighting the first elite enemy at the end of the section, go in the building at the end of the street where the rally point is and before heading up the stairs to the elevator the Intel is on the desk to the left of the stairs.
A Message from the Board - All War is Deception - Right after getting off the elevator right at the start run up to the console the game wants you to interact with. The Intel is right next to the console.
Another Operation - All War is Deception - After fighting the Leadfoot and setting the 4 detonation charges fight off all the soldiers in the next hallway. The Intel is at the T-section at the end of the hallway on top of a crate next to a destructible crate (that may or may not be there depending on your aim with the Behemoth)
Warp Rifle - All War is Deception - Right after the short cutscene that Dalton detonates the fuel lines the team will end up in an armory. The Intel is on a counter behind the metal closets.
Whistler - All War is Deception - At the segment where the team is split up momentarily head to Izzy and Naya's section and run into the first building and run up the stairs, curving left around into the bathroom, the Intel is on the shelf.
From Luther Deveraux - All War is Deception - Right after Meilin attacks you after the split-party segment head inside the next door and the Intel is just past the small alcove area on the left on a table.
True Love - A Bad Breakup - The mission starts in the sewer right after defeating your second Enforcer robot, run outside out of the tunnel and look to the left next to the dead soldier and the truck and the Intel is next to the soldier.
Greener Pastures - A Bad Breakup - After breaking inside the bunker with the 2 turrets and clearing it out don't go to the rally point. Instead head back downstairs (where the tunnel entrance is) and the Intel is on the back wall on top of the forklift near the Xenotech xp boost.
I never had a Choice - A Bad Breakup - After deactivating the two motion turrets go into the next room and walk up the steps to the raised portion of the room, veering slightly to the right. The Intel is on a countertop next to a couple dead Hazmat suits.
Mission 4 - Raven Facility
*** Spoiler - click to reveal ***A New Opportunity - The Long Road In - After climbing on the truck and disabling the single motion turret head inside but instead of going to the rally point and starting the cable car segment follow the giant yellow pipe on the right side around the corner and the Intel is there.
Arcshot - The Long Road In - After blowing up the landed Whistlers and reaching the second cable car station go to the hallway with the Infiltrators, deal with them and exit the hallway on the other end to the other cable car station. Hack the door directly under the door you just entered the room from and the Intel is at the end.
Oculus - No Honor Among Thieves - At the very first firefight before breaching the wall to turn off the vents, head towards the back-right corner of the area towards the small building with the Harbinger locker inside. The Intel is in there on the counter.
Somethings Rotten - After going through the vents and cutting through the grating, fight through the next two rooms and instead of going through the door the objective marker wants you to go through look to the right and hack through the side-door and the Intel is inside.
Maelstrom - No Honor Among Thieves - In the Research wing (with the disassembled Maelstrom in the main chamber) the Intel is in the sub-room on the left side on the giant cylindrical chamber.
A Wolf amongst Sheep - No Honor Among Thieves - After the segment with the Seekers, soldiers, and the Leadfoot that retreats halfway when wounded, clear out the next room but before joining the team on the elevator run past the elevator and the Intel is on a crate between two trucks.
Naya Deveraux - No Honor Among Thieves - Right after dropping down and overhearing Luther Deveraux talk to a wounded soldier then shoot him, open one of the grates and drop down into that room and the Intel is on one of the corner desks on either side of the room.
Enforcer - No Honor Among Thieves - When you enter the room where you activate the Enforcer to help you the Intel is under the Enforcer on the right side closest to the door.
No Turning Back - No Honor Among Thieves - In the room where the enforcer blows up go into the sub-room on the right and the Intel is there on one of the stacks of crates.
Not a speck of Progress - The Betrayal - After the fight with the Leadfire and Leadfoot at the same time head inside to the burning-warehouse-corridor-type-room and go straight ahead towards the back wall near the biggest conglomeration of bodies, the Intel is on a crate near that back wall.
Mission 5 - Jodhpur Stronghold
*** Spoiler - click to reveal ***Raven is not Dead - The Extraction - Start the mission and clear out all the enemies in the first building structure. Head towards the console the objective marker is pointing to and turn left to see a grate you can pull off. The Intel is just inside the vent.
Fuse Grenade - The Extraction - Zip-line down to the short sewer area and go through the buddy door. On the other side climb up the pipe that's between two larger drainage pipes. At the top the Intel is to the right on a barrel.
Jacob Kimble - The Extraction - After the skirmish where you first meet the MagShield version of the Riot shield enemies don't go through the indoor section to the next battlefield, instead go over to the right and head up the stairs leading back on top of where you entered the area from the sewers. The Intel is in the room at the end on a table.
A Difficult Mission - Uninvited Guests - After defeating your second Leadshot and going up to the rally point at the end of the battle. Instead of breaching the wall look over to the display case, the Intel is on the case.
Don't Trust Fable - Uninvited Guests - after defeating your second Leadshot and breaching the wall a battle further ahead go down the hall and curve to the right around the railing and the Intel is back down that side of the hall on a table at the end.
We've been Hit - Family Reunion - Right after the cutscene ends with Deveraux turn around and the Intel is next to the broken tablet.
Fables People - Family Reunion - Right after clearing the first room with enemies after security Luther, head up the stairs but run past the rally point into the next hallway. The Intel is inside next to a dead soldier.
William Fable - Family Reunion - When you take Luther up the elevator and fight the skirmish where you fight up to a turret and then fight off a bunch of Spec Ops and Mag shield soldiers go in to the next room but instead of going towards the objective go to the door on the left wall and hack it open. The Intel is inside next to a Xenotech xp mineral.
Luther Deveraux - Family Reunion - After the turret segment you'll come to a skirmish area where you fight some soldiers and then a Leadshot and then 2 blood hawk helicopters. Run around the next corner and run up the stairs, curving around the railing and heading to the upper right corner. The Intel is in a little alley/balcony area.
Mission 6 - Grigori Station
*** Spoiler - click to reveal ***A new Tomorrow - One-Way Tomorrow - After the gravity is turned back on at the beginning of the level head into the next room and the Intel is on the yellow tubing to the left.
Forgive us - One-Way-Trip when you finish clearing out the second conveyor belt room (the one that has a single conveyor belt, several Arcshot snipers, and an Elite soldier) the objective marker will point you to two points in the next room, one being a door. Instead of taking the door breach the wall the other objective marker is on and the Intel is inside next to a soldier who committed suicide.
Fables Friends - One-Way Trip - After fighting the two Leadshots at the same time go over to one of the two short bridges and climb over the edge and drop onto the glass below. The Intel is under the bridge on the right side.
Drastic Measures - Peace, In Pieces - After defeating the Elite Leadfoot in the cargo bay look towards the far back wall of the lower level and the Intel is in the cradle of the boom lift in the corner.
Ikarus Spacesuit - Peace, In Pieces - After plugging in the second Fuse cell instead of going through the next set of doors hop over the railing to the right of said doors and jump across to the other platform. Head around the corner on the platform and the Intel is on a group of small black barrels.
Fables New Toy - For the Good of Man - After using the quadruple panel to redirect the guidance systems of the transports in order to destroy the satellites, make your way up the stairs to the left and into the Orange room beyond the buddy door. Either clear everyone out or just sneak past them to the right and hack through the armory door. The Intel is on a shelf between the Behemoth and Incinerator sitting on the ground.
When Munich Falls - For the Good of Man - after getting out of the obnoxiously orange room go to the left, shoot the grate and deal with the seekers and climb up into the duct. The Intel is immediately to the right on a metal case structure after entering the duct.