@swartsz thanks. Well placing the lights depends on your scene and camera. If you have a prelightened (only color map) texture it isn't very easy. If you have an outdoor scene, put one light above the weapon. Additional lights can be placed near by, and on the opposite of the camera.
Hard to say, as it still depends on your scene and weapon. But feel free to show something in the WIP thread or via PM, EMail.
