When XCOM 2 originally launched on PC it did feature a number of associated bonuses when placing specific rooms adjacent to one another. Over time however, the developers have removed a lot of these to allow for a more personal experience and to give players the opportunity to truly enjoy the impressive levels of variety and customization on offer when trying to build the best base in XCOM 2. This means that there is no real wrong way to make the best base layout when customizing your Avenger, although the higher difficulty levels do demand a more efficient and streamlined setup to ensure survival.

A brief word on the Vehicle Bay, which is unique in three respects. Firstly, it takes up a 2x2 section of the base layout grid, rather than a single tile. Secondly, it cannot be demolished. And thirdly, it is the only building that you cannot manually build, which means the only way to gain access to one outside your initial Vehicle Bay inside Phoenix Point is to recover a base that already has one installed.




Xcom 2 Optimal Base Layout