With the Santa Blanca neutralized, Unidad forces are struggling to maintain control as various factions the cartel's remnants in the Bolivian countryside.
To help them assert control, they bring in Los Extranjeros - a group of international ex-military mercenaries with the singular focus of taking out any and all opposing forces.
You and your team will have to use every tool at your disposal to engage this formidable new foe in Fallen Ghosts, the new expansion for Ghost Recon Wildlands available now for Season Pass owners (and available June 6 for individual purchase).
What makes Los Extranjeros so dangerous is their tech and expertise.
For starters, there's the Armored unit, a walking tank with a single weak point that will require Ghosts to hone their headshot skills.
Then there's the Covert Ops unit.
These cloaked enemies specialize in catching you off-guard, so it might be a good idea to have a squad member check their thermal vision more often.
Rounding out Los Extranjeros are the Elite Snipers and Jammers - the former is a constant threat, while the latter causes a new set of problems with their roaming electronic disruption capabilities.
Los Extranjeros present new challenges for Ghost Recon Wildlands players as the Ghosts undertake 15 new missions and work towards the new level cap of 35 - but for those looking for an even greater challenge, Fallen Ghosts' tweaked difficulty settings allows players to create an even greater tactical challenge for their squad.
Ghost Recon Wildlands is currently available on PS4, Xbox One, and PC.