Some minor spoilers will be present in this solutionWhen starting the game, the Remnant VI ability will be locked and unavailable to you. In order to unlock the skill, you must complete the first few steps in Peebee's loyalty quest line which should start shortly after meeting her if you speak to her on-board the Tempest. You will not be able to complete this before gaining access to the second major open world, Voeld. When unlocked, the skill will show up in the Tech skill tree with 1 free skill point already assigned to it.
Controlling the VI is rather straightforward. Tap whatever button it is assigned to with weapons drawn (does not have to be in combat) to summon the VI. Once summoned, tapping the button again will cause the VI to target whatever enemy you are pointed at. Holding the button will cause the VI to self destruct. The VI will follow you around, even with weapons put away, until destroyed, entering the Nomad, or entering the Tempest.
Note: To earn progress on this achievement, make sure to remember and use the targeting input and then allow the VI to attack each Remnant type. The VI getting a killing blow is unnecessary, but it must actually deliver an actual attack.
List of Remnant types that must be targeted:* Assembler
* Breacher
* Observer
* Nullifier
* Destroyer (both body and turret)
* Architect (increasingly sounding like only the leg needs to be targeted)
Notes:* For the Architect, these are in limited supply. These are gigantic Remnant who function as large boss battles. I have currently encountered 4 of them, one on Eos, Voeld, Kadara, and Eladeen. Each is related to a quest gained after settling an outpost, with Eos also needing the radiation to completely clear. I am rather certain that Havarl doesn't have one.
*
If you are having trouble finding a Destroyer spawn, I believe there is a respawn location in the Remnant Abyss on the north side of the map of Havarl. Turns out I got my underground Remnant areas mixed up.
The respawning Destroyer I was thinking of is actually in an unmarked vault area on the far eastern edge of the Eos map. It is the endpoint for the quest
Task: The Ghost of Promise, for those that managed to complete that quest.
https://screenshotscontent-t2001.xboxlive.com/xuid-271422298... * There is actually a small bug-like Remnant (Creeper) that I am uncertain if it counts towards this achievement. I have doubts that it does as it doesn't appear in the codex. They spawn frequently around larger Remnant locations, in particular those on the surface of Eos, though I have encountered them in other locations. If you are having trouble and tried everything else, try getting the VI to target one of them.
* I cannot personally confirm that you need to target both parts of the destroyer
or architects. Enough people have suggested this as solution to problems that they were having that I would suggest making sure to target both portions of both enemies just to make sure.
Enough people have been saying they didn't need to target the architects head I'm beginning to believe this isn't necessary. You may want to target the head when you get the chance just to make sure anyway.
* It has been suggested that the stand-alone Remnant turrets count the same as the Destroyer turrets.
* I can't confirm the above because I can confirm this, the VI
MUST attack the target after you tell it to for it to register towards the achievement and the Nullifiers' shield
WILL interfere with this. I was certain I had my VI attack them all but the achievement didn't unlock. What finally allowed it to unlock was to have my VI target a nullifier while I distracted it allowing the VI an unobstructed view of the back of the nullifier.