There's a SWISS SSG 3000 Sniper Rifle in Fallout 2?
But I agree with the general opinion that the addition of the real-life weapons was a bad move... although some of them are cool (Pancor anyone?)...
Uhm... yeah... well... I just think it'd get a little boring when it's totally underground... but that's because Fallout is the way it is now... if it was totally underground, I probably would think it sucks if it was above ground...
Dude, I swear to God, you almost killed me with that... :P
But then... we'd have to remake the San Fran map so it has silt deposits and flood defences!!! And fishing boats!!!
Anyhoo, I like those ideas, except nr. 3...