U cannot talk about role playing game and not talk about Diablo? Surely, you must've nown that it is an Epic RPG?
I consider Splinter cell as a first/third person (tactical) shooter. But basically, any game involving a bit of a story, adventure and narrative is an rpg. So, in some way or other, most of the games have rpg elements.
Here's a wiki on rpg: *en.wikipedia.org/wiki/Role-playing_game