In the late game, when you are able to upgrade your Resistance Comms, two of those should suffice - you need a total of 16 contacts to be able to initiate contact with all the resistance outposts. You should have three of those facilities as early in the game as possible - the faster you achieve it, the easier it will be to initiate contact with the resistance, allowing you to counter the effects of the AVATAR Project easier, as well as providing you with more resources. This is probably the most important facility in your base and should be constructed as quickly as possible. The prime function of the Resistance Comms facility is to increase the amount of contacts available to you, allowing you to initiate contact with a larger number of resistance outposts. Probably the most important facility in the game - Resistance Comms.
