New at SWEPs -- First Weapon

Here is the link for my first SWEP in GMod.

Can anyone tell me how to make it so that the models is shoots retain their ragdoll ability or is this impossible? Also, I am not sure how to use VTF’s and VMT’s to make spawn icons. I have seen tutorials on this but whenever I follow them, the spawn icon flashes and looks almost like a bad TV on the weapon screen and whenever I click on it, nothing happens. Any help would be appreciated.

Try using a prop_ragdoll instead of a prop_physics for that part.

Use VTFEdit to make textures.

I do but it comes out wrong. I used this tutorial here: