under the projectile data, look for muzzlevelocity-- this is the projectile's speed. The maximum speed you can set it to is 200, but if you want the speed to be like the gun's, set it to at or under 100. Then look for 'particleEmitter'(also in the projectile data), and just delete that entire string. Finally, look for shapeName, which is in the projectile data too, and replace whatever is in it with add-ons/weapon_gun/bullet.dts(I think that's the right dts name ._.), or, just deleting that entire string will work as well