The main walkthrough in this guide will come across all schematics. In case you missed some, you may refer to this section for some general directions leading to them. Since most of them are inside secured supply rooms, it pays to carry at least one power node with you always.
Elite Engineering Suit (Available in New Game , any difficulty)
Found on the seat in the same room of the first store.
Found inside the first locked storage room, by the save point and past the walkalator.
Found in the empty tracks in the tram platform.
After surviving the derailment, check the shelves in the back of the train wreckage.
Near the end of Chapter 4, where the viewing deck is, you'll find the schematic on the floor behind the table and a chair. This on the left side of the marker replica.
Found on top of the shelf at the back of the security room.
Found in the room where you need to turn off the gravity drive.
Medium Health Pack
Shortly after turning off the gravity drive, you'll need to exit to the other side. The schematics is just floating around in the middle.
After falling down from the maintenance vent, you'll the schematics on the next room, by the shelf.
This one is hard to miss since its in the same with a savepoint and other goodies.
Check the balcony outside the room containing the chapter's first save station.
After meeting Ellie for the first time, check the farthest seats in the mezzanine to find the schematics on the floor.
After clearing the gymnasium, find this schematic on the next classroom.
Elite Vintage Suit (New Game only)
After reaching the transport hub, check the displayed rig to the left to find the schematics on the floor.
When you reach the large, zero-g area where you need to push the elevator up by shooting the thrusters underneath it, find the schematics lying on the floor at the bottom.
After the elevator sequence, you'll find yourself in a circular catwalk with cyst-laden lockers on both sides. One of these lockers contain the schematics.
In the corridor leading to the Solar Panel Control Pod (and after the previously locked-down mainframe room), you'll find a secured supply storage room beside a save point in the far end of the corridor. You'll find the schematics inside.
Inside the Operations Control Room (the small room near the starting point and where you'll get attacked by four necromorphs) is a secured storage room. The schematics are found inside.
After meeting up with Stross and Ellie, exit to the large machine room. The schematics is on the floor, beside the corpse to your immediate left.
Large Med Pack
After meeting up with Stross and Ellie again near the end of the chapter, find the schematics on the shelf behind.
After the small room with a breakable partition window, you'll find a narrow corridor with two ramps. The first ramp has two deployed mines. Destroy the mines then remove the barricades to the right to find the schematics on the floor, beside the dead body.
After clearing the large warehouse of stalkers, you'll find a guardian by the elevator. Check behind it to find some items and the schematics
In the zero-G, centrifuge area, you'll find it on the ground below.
In the vacuum area where you need to move the lasers away from the shaft, hover to the right side of the shaft to find the schematics floating near the window.
Author's Note: I initially missed this schematic but for some reason, it was added to the first store I've accessed in Chapter 13 WITHOUT having the schematic at all. My brother who was playing on a separate file also confirmed that he got this even when he missed the schematic in Chapter 11.
After the spacewalk, you'll be in mining hall. Follow the catwalk to Mining Hall B door. There will be a secured storage to the right. You'll find the schematics there.