We never got the additional story mode heists for Grand Theft Auto V, but Rockstar Games seems to be making up for that with the next add-on for perennial moneymaker GTA Online. From the looks of it, "The Doomsday Heist" is going to be pretty involved. Based on the trailer below, you'll steal a surface-to-air missile truck, explore Mount Chilliad, interact with a snarky AI named Clifford, don a jetpack, take to the sky in a flying car and then use the same car to intercept a submarine. Yeah, there's a lot going on.