GTA 5 Gets Co-Op Mode With Small Mod - GTA BOOM

Not only is this GTA 5 co-op mod legal, it's also pretty awesome.

Glitches in Grand Theft Auto: San Andreas, GTA Wiki

Grand Theft Auto 5, GTA V, GTA 5 Cheats, Codes, Cheat Codes for Xbox One - Cheat Code Central

GTA 5 mod allows multiplayer co-op in Story Mode

Sparrow, GTA Wiki

GTA 5 Multiplayer Co-op Mod Showcase! Play LSPDFR & Other Mods w/ Friends & More!

GTA San Andreas Definitive Edition: All Cheats

GTA 5 Online Update: 3x money on Open Wheel races, Armored Kuruma discount, free Sultan classic - Daily Star

GTA 5 CO -OP - Single Player Online Experience FiveM BANNED ? (GTA 5 Online)

Multiplayer Co-oP Mod