In typical Ubisoft fashion when a game is not meeting expectations, why not let people try it out for free? Ubisoft is now allowing PS4 and Xbox One players to try out Ghost Recon: Wildlands for free today. The free trial will give you five full hours of gameplay. Sadly this is not available for PC players (not sure why).
Ubisoft also announced a PvP open beta for Wildlands, which Ubisoft hopes can bring a more exciting aspect to the game. The team has been supporting the game with DLC, so maybe letting more people try the game might boost sales.