Because you like Ezio Auditore Da Firenze in Assassin's Creed Series
All who live know his name, and all who oppose him shall know Death. See them in Darksiders Series.
All it takes to change the course of history is the will of a single man called John Price. See them in Call of Duty Series.
A hardboiled 1940s detective, Cole Phelps is haunted by his past in World War II. See them in L.A. Noire.
Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.
Those who stand against this singular super ninja are doomed to fail. See them in Ninja Gaiden.
It's hard enough fighting a war. But it's worse for Commander Shepard, knowing no matter how hard you try, you can't save them all. See them in Mass Effect.
A super-soldier, Master Chief might be more machine than man. And for humanity's sake, thank God. See them in Halo.
Frank West enjoys the adventure that comes from his work. But a zombie outbreak might be a little too much even for him. See them in Dead Rising.
A reformed former outlaw, John Marston doesn't want any trouble, yet somehow trouble always seems to find him. See them in Red Dead Redemption.
Driven by guilt and rage, Kratos is less a man and more an unstoppable avatar of anger and hate. See them in God of War.
A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.