Mass Effect: Andromeda
55 Achievements
Mastermind
Using constructs, kill 100 enemies.
How to unlock the Mastermind achievement in Mass Effect: Andromeda - Definitive Guide
I made a video about it so hope it helps. Good luck!
You can unlock your Turret right away in your skill tree. The Remnant VI does not unlock until you have done PeeBee's first side mission.
I did this entirely with the Turret and also made sure that my Turret was maxed out to Level 6. The Level 6 upgrade to add the Flamethrower, does a tremendous amount of damage to enemies and is highly recommended.
Kill 100 enemies with either the Turret or VI to unlock this.
This trophy can be earned in single player and multiplayer, and is cumulative from both modes. The two skills that count as constructs are the Assault Turret (Tech Skill tree) and the Remnant VI Drone (Tech Skill tree). You need to advance in Peebee's side missions to get access to the Remnant VI Drone skill. Now use either of these two skills during battle and let the constructs kill 100 enemies to unlock this trophy.
In multiplayer, look for characters that have the Assault turret skill, which you can use during extraction matches.
For this achievement, you will need to use either Assault Turrets or the Remnant VI to kill a total of 100 enemies. These constructs are fairly weak, so I'd suggest taking most of an enemy's health down first and then just go into cover with your construct nearby to finish the job. This can be done in either SP or MP, in any combination.