7. Mass Assassination
The very last mission sees that nefarious FIB antagonist Steve Haines give Franklin an ultimatum. Either kill Michael or Trevor. Its not necessary for this article to detail why, but thats your choice. Or, you can select the Death Wish option which unites your crew for one final stand against everyone that has been an obstacle in your quest for riches and freedom. Steve Haines, Devin Weston, Mr. Cheng, Stretch (Some gangster dude everyone completely wipes from their memory by this point); they all meet the reaper in one mission where each protagonist takes a different target. You also get to assassinate someone riding a Ferris wheel. It doesnt get any more creatively awesome than that folks.