8. Minigun
One of the single most powerful weapons in the Grand Theft Auto series, the minigun appeared in GTA Vice City, GTA San Andreas, Grand Theft Auto Advance, GTA Chinatown Wars, GTA Liberty City Stories and GTA Vice City Stories. It was also set to
feature in GTA IV, and was planned to be the game's second heaviest weapon after the rocket launcher, but for reasons unknown, it was dropped in the end. By using the remaining data for the minigun in-game, it appears to carry a 750-bullet load and to be able to kill any person (armoured or not) with one shot, making it the most powerful weapon in the game. A huge piece of machinery that can cause untold damage, it was my favourite weapon in San Andreas and should feature in GTA games in the future.