"Speaking of ridiculous stuff, the update also adds the ultimate griefing weapon to your arsenal: the Orbital Cannon. Situated within the one of the rooms in your base you’ll find a large circular table displaying a real-time satellite feed of Los Santos. Once booted up, you’re given three options; at no cost, you can snoop around the map, spying on other players. Or you can target them, manually or automatically, with the absurdly wonderful orbital cannon.
Targeting manually is a bit more tricky as the reticle moves relatively slowly, while Automatic Targeting allows you to select a player from a list for an assured kill. As you’d expect from an ‘orbital cannon’, the effects are devastating; a beam which resembles a bolt of lightning plummets from the sky, devastating everything and anyone nearby. If you’re targeted, your kill screen simply reads Obliterated. Understandably, the orbital cannon comes with a hefty cool-down (an in-game day, or 48 real-time minutes) and cost (half a million for manual, $750k for automatic targeting)."