Terminator Genisys: Fall of Skynet
Fall of Skynet is an expansion for Terminator Genisys: Rise of the Resistance and allows you to add a fifth player to join the resistance as your team sieges Chyenne Mountain, the location of the Central Core of Skynet. This expansion includes six new missions to play, as well as a mission generator that will allow you to create new scenarios to face.
This expansion requires a copy of Terminator Genisys: Rise of the Resistance to play.
Check out Fall of Skynet on Board Game Geek.
Overview from Dice and Dragons: