Personally, I'd say it would greatly improve any first person game, but especially Fallout. I found myself constantly readjusting between games
when I'd switch between games and lamenting that my character could only manage a light jog even when under attack. Another aspect was
the immersion that the stamina system gave, your character panting for breath as they fled or tried a power attack would be just as helpful to
immersion as minor texture and graphics tweeks would often have your standing dumb in awe of the environment. Finally, I tend to think the
sprint and stamina mechanics would greatly improve the viability of melee centered characters.
There's my view, do you think it would be a waste?