Grand Theft Auto V "evolves nearly every mechanic found in previous games in the series. GTA V's world is bigger than the worlds of Red Dead Redemption, Grand Theft Auto: San Andreas and Grand Theft Auto IV combined. Areas in the game world include beach fronts, mountains, the wilderness, a "Salton Sea" region, a military base and the suburbs. The ocean floor is fully detailed and can be explored.
GTA V's single-player story is told through three player-controlled protagonists. They are Michael, Trevor and Franklin, criminals whose stories interconnect as they complete missions together. During story missions, the player can switch between the protagonists as they work together to accomplish an objective; in one such mission, Michael rappels down the side of a building, Franklin provides covering fire with a sniper rifle, and Trevor controls the getaway helicopter.