This message is directs to joehol,
You very well can change any propert of gun to make the projectile as you wish if you do the following - Spawn the item, press m then click on the item, scroll down to "Collision" then click on "Collision" from there you can activate any one of the listed powers in "Collision" and the projectile fired from the weapon will do the appropriate action according to whichever power you selected. Example
Shotgun - press m scroll to "Collision" click on it then press explosive, now when you shoot it at something all the rounds will explode on contact.
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