Metal Gear Solid 2: Sons of Liberty or MGS: Substance. Don't remember seeing it anywhere else.
To take a vote, I like bolt action rifles like the Steyr Scout, but I'll have to go with the Fallout 3 Sniper Rifle, although it's essentially the same one as in 1&2. .308 if I'm not mistaken.
If only the intellectuals would stop making sticks for warriors to bash each others brains out with, eh?
On topic: "Bethesda suing Interplay"? Isn't that like "Boeing suing the Wright brothers" or something? Anyway, screw the Fallout MMO, in my opinion. It sucks in every way I try to...