https://www.gamespot.com/articles/free-ghost-recon-wildlands-pvp-mode-ghost-war-out-/1100-6453947/

Following a server maintenance period, a new update will be released today for Ghost Recon: Wildlands on PC, PS4, and Xbox One. In addition to some bug fixes and improvements, it introduces Ghost War, the new competitive multiplayer mode that's available for free to all players.