Just Cause 4

In the game, the player assumes the role of series protagonist Rico Rodríguez who arrives in the fictional nation of Solís to take down The Black Hand, the world's biggest private military. The new technology allows the game to feature diverse and extreme weather effects, including blizzards, sandstorms, tornadoes and more. The game takes place in the fictional nation of Solís, a large open world consisting of different biomes including snowy mountains and deserts. The game also features a weather system and environmental hazards such as tornados and thunderstorms. The game features a large variety of vehicles and firearms, including exotic weapons like the Wind Gun and the Lightning Gun. The game includes a frontline system in which the rebel forces fight against the Black Hand army at the borders of their territories. When Rico is shown evidence that his late father was working with The Black Hand, he plunges into the South American nation of Solís, the homeland of the Black Hand in search of answers. After the events of Just Cause 3, Rico Rodríguez is approached by Mira Morales, a native of Solís, who says that Rico's father, Miguel Rodríguez, was working on the Illapa Project, a weather weapon that Oscar Espinosa is using to control the people of Solís with. After a failed attempt at deposing Espinosa and a run-in with his private army, the Black Hand, which is led by Gabriela Morales, Rico forms an army of his own with Mira, named the 'Army of Chaos', aimed at taking down Project Illapa and ending Espinosa's regime. Along the way, he meets up with Luis "Sargento", an eager commander of the Army of Chaos; Izzy, a hacker; Garland King, a filmmaker obsessed with filming stunts in Solís; and Javi Huerta, an archeologist wishing to uncover the history behind Solís and the Espinosa legacy. As Rico sets out to destroy the four prototype weather cores being tested in Solís, he also meets up with Lanza Morales, Mira's uncle and a scientist who worked on Project Illapa; César Pedrone, a former pilot turned conspiracy theorist; and Tom Sheldon, Rico's old handler at the Agency. Soon, it is revealed that years ago, Miguel, together with Lanza, and Espinosa's father, Leon Espinosa, worked on the project with the aim of controlling the weather for the good of the people. However, Espinosa, convinced that his father was wasting his family's money on the project, took over after his father's sudden death and intended to weaponise Illapa's technology and research to sell to the highest bidder. Miguel, disgusted by the idea, left the project, but Espinosa used his control of Sebastiano Di Ravello in Medici and connections with the Agency to kill Miguel, before proceeding to imprison Lanza to force him to continue working on the project. After Rico succeeds in destroying the four weather cores, and the Army takes over Espinosa's main base, Espinosa reveals that he has already created a perfected weather core that combines all four of the weather cores' abilities and is intending to sell it to the Agency for trillions of dollars.