Not yet, but you could probably download the Classic Fallout Weapons mod and change the leveled lists in the GECK to make them replacers. Here's the Winchester City-Killer (there's an .esp to make it a replacer, I believe): http://www.fallout3nexus.com/downloads/file.php?id=3827 Wattz Laser Weapons (replacer): http://www.fallout3nexus.com/downloads/file.php?id=3002 Not sure if your VATS request can be done, as that's a hardcoded mess.