Over the course of four weeks, Guardians have been tasked with finding four dead Exos in Season of the Seraph's seasonal mission, Operation: Seraph's Shield. The mission functions like a single-player version of Destiny 2's Deep Stone Crypt raid. Unfortunately, Guardians won't be able to collect all four in a single run. In addition to being run on Legendary, you must collect each on a separate run. Now that you're mentally prepared let's tell you where to find them.
Where to find all four Exos in Operation: Seraph's Shield
Exo #1 (Should You Choose to Accept It, Part I)
The first dead Exo is in the room with the rigged floor tiles and laser grids. Solve the challenge and collect the schematics from the corpse before leaving the otherwise empty room.
Exo #2 (Should You Choose to Accept It, Part II)
After acquiring the Operator buff and entering the third set of vents, Guardians will need to shoot an Operator panel through a gap. After doing so, turn around and follow the vent to the right to find the second Exo.
Exo #3 (Should You Choose to Accept It, Part III)
The third Exo is located in the room of the first boss fight, where Haroktha, Scourge of the Helium Drinkers, first appears. This is the same room where Guardians must fight the three brigs. After entering the room, look to the right to find the Exo. We recommend doing this before starting the fight so as not to forget it.
Exo #4 (Should You Choose to Accept It, Part IV)
The fourth and final Exo is found in the Eliksni Ketch just after defeating the first boss (three brigs fight) and being captured. After clearing out the small hallway just outside your cell, look in the middle alcove on the right to find the last Exo.
For more Destiny 2 goodies, check out How to use the Glittering Key in Destiny 2 (2023) on Pro Game Guides.