XCOM 2
87 Achievements
Shen's Legacy
Build a facility in every Avenger slot
22.9%
How to unlock the Shen's Legacy achievement in XCOM 2 - Definitive Guide
1. Focus on engineers from rewards. The more engineers excavating the quicker it will go.
2. Think about build order. If you build every building in the game except defense matrix you should be left with 1-2 spaces left. This assumes you build at least 1 resistance comms and at least 1 power station.
3. Workshops and laboratories are optional; if you were super keen to get this done you could use gremlins from workshops to act as engineers; in reality your supplies would likely be better spent elsewhere.
You can optimise power usage by saving your second power station and a psi lab for the exposed power coils. The reason I suggest a psi lab is because it takes 5 power as apposed to some other early game facilities which cost less and so the gain would be less efficient.
Facilities are buildings that can be constructed in the Avenger. There are 12 available slots, which are arranged in a 3x4 grid. At the beginning of the game, only the top row of slots will be available for construction. The rest are blocked by debris. You will need to assign an Engineer to "clear out" these slots. You can only clear out slots that are adjacent to open slots so you will have to work your way to the bottom. Clearing out slots costs time and money (and gets more expensive as you move down) but you gain resources for each slot you open and you will need to open several slots to construct all of the facilities that are necessary to complete the game. All of the facilities are beneficial in some way and most can be staffed by Engineers, which increases their usefulness. Due to this, Engineers are the most important resource in the early game and it is a good idea to start clearing out slots as soon as possible. Get as many Engineers you can and never let them sit idle!
For this trophy, you will need to construct 12 facilities, one in each slot. For a full list of facilities: LINK