Unique weapons cannot be modded like regular weapons. 'That Gun' is already a modded .223 pistol, you can't add any other weapon mods to it.
project nevada
In Fallout 3, there was a site called "Fallout 3 Nexus", from what I understand it was where everyone went for mods. Similarly, one was made for New Vegas named "Fallout New Vegas Nexus". You'll be able to find all the mods you could ever hope for there (just google it). Be sure to download the Mod Manager, it makes mods easier to use.
Nope. Fallout 3 and Fallout: New Vegas are completely different games, sure they are in the same title and the same game engine, but the configurations and in-outs are different for both games, so you cannot simply apply a mod you used for Fallout 3 and try to run it on Fallout: New Vegas. You may be able to find mods that match your Fallout 3 mods for New Vegas on an assortment of different websites all over the net.
All of Fallout New Vegas' DLC's have been released; no more are in production. The DLCs are: -Dead Money -Old World Blues -Honest Hearts -Lomesome Road -Gun Runner's Arsenal -Courier's Stash If you want additional content for your game you could try out some mods. The majority of Fallout New Vegas Mods can be found in the related link.
You can't. Once you put it on it says on
Fallout New Vegas of course 5 examples:Scope, Plasma caster electrode, custom action, focus optic and 10mm recoil cap
No no more DLC is being developed for Fallout New Vegas. There are; however, multiple Area 51 mods you could take a look at.
no u need mods
No, you can only craft, find or buy the dart gun in Fallout 3.
The unique gatling laser in Fallout New Vegas (The Sprtel-Wood 9700) can be purchased from the Gun Runners provided that you have the Gun Runner's Arsenal DLC.
All around best gun for me would be 'This Machine'.
You can't mod the console versions, only PC.