How to get the content:
Register on Steam or log in with already existing account and enter on Tom Clancy’s Ghost Recon® Wildlands – Fallen Ghosts store page. Click on Add to Account button to keep this content permanently. This content requires the base game Tom Clancy’s Ghost Recon® Wildlands in order to play. This offer will expire Oct 11 at 17:00 UTC.
Or just click on following link: https://store.steampowered.com/app/573832/Tom_Clancys_Ghost_Recon_Wildlands__Fallen_Ghosts
About this content
Hunted Down by Ex-disgraced Special Forces that created their own army, your squad will have to fight harder than ever to complete your mission.
– Fight a new powerful enemy, learn new skills and unlock exclusive weapons in order to complete your mission.