The reason i chose 3 and not 1 or 2 is because Far Cry 3 just drops someone from the real world into warfare and not someone who has actually killed people before.

The RP would start in someone who would take the role of a villian's slave camp. They would escape, meet up and then get the tattoos from an NPC unless someone want's to be a sort of helper. Eventually the group would become warriors of Citra (or if someone want's to play as...you get it now don't you? Canon characters can be played by you!) and eventually would have to make the choice of saving their friends or you know...the other thing.