Good god, is this what gamers define as an RPG?
Isn't ANY game an RPG?... I mean, you ARE playing a role... however in the traditional sense I think "rpg" would be more of the Dungeon/Quest type game where you "roll" to play, e.g. Roll[the dice to] Play[ing] Game.
In whatever case, I like the 'more rpg' type element (interacting with NPC's, driving, picking up supplies from vendors) in this case, much more would really distract from the fact that it is classified as an FPS, which FPS > all (when done right, like id always does).
Edit: GAH! This browser 'autocorrect' setting is driving me nuts... damn Apple.