4. Kill Frenzies/Rampages
GTA is a series of games that puts a unhinged psychopath with a gun in the middle of a sprawling sidewalk, and if that wasn't enough of an incentive for players to go around murdering as many people as possible, Rockstar thought they'd give you even more of an excuse by designating a whole side mission to it. This giant purple floating skull icon could be found hovering throughout various areas of the map in virtually all GTA games excepting IV. Should the player opt to step into it, a side quest known as "Rampage" would be triggered whereby the player had to kill a certain amount of gang members, run over pedestrians, perform drive-by shootings or destroy a certain amount of vehicles, because let's face it, we don't do enough of that in our downtime while playing GTA. In earlier iterations of the series, this quest was known as "Kill Frenzies" but whatever you choose to call it, it is just about the most bloodthirsty side mission any GTA game has ever produced. We get the feeling this particular strand of mission would suit Trevor down to the ground, considering he's probably just about the most violent of all the game's three protagonists in V.