Some of the projectiles behave differently, like the fat man projectile, or the Nellis Artillery Shell.
Now, open the weapon you just 'made', and you can edit just about everything about it, from the weight of the item, to what kind of projectile it fires. This bypasses weapon replacement by just creating a new item. Because you changed the ID and Name, the Geck will ask you if you want to create a new form. Change the Editor ID and the Name, and hit OK. This opens a dialog box which contains all the information about that particular item. If you want to take the easy route, just find an item that would use the icon of the item you want to make, right-click on it, and choose Edit. Since weapons are, without a doubt, the most modded items, we'll focus on those. esm, and disabled any extra packs you have installed, you make your items. Once you have opened the Fallout New Vegas.It is very important to disable the extra packs, like the Caravan Pack or the Classic Pack, before you press okay, so that your mod is compatible across a wide range of installations. Next, you want to open the Fallout New Vegas. This allows it to save files without asking for permission all the time. The first thing you need to do is open the Geck as an administrator.Okay, you just got the Geck, New Vegas version, and you're all ready to go and make some awesome stuff, right? Do you know how? Well, if you don't, maybe this will help.