[quote=Richie5572]
I like the 1st picture and the 2nd gun in the 2nd picture those look the best. all them look cool but those I think are the coolest looking.
[/quote]
I also like the same pictures. I think a rail gun should be powered by back pack unless you are wearing power armor to tap into the fusion generator. It does take a lot energy to throw a piece of tungsten down range fast enough to kill unless I guess you keep the tungsten rounds small like around 4.7mm or smaller.
Or you can make two versions;
1. Assault type - Rifle like - energy cells - silent SA and FA operation - Use and Retexture Gauss Rifle since that is what a Rail Gun is anyway.
2. Heavy Assault - Picture 1 but make it more Lore Friendly with backpack or Power Armor - Reduced sound FA Operation - increased damage.