yo i was doing the same exact mod but gave up i couldnt get the stupid models to inject the right way
anyway i would use the plasma rifle. It is pretty easy to convert.
i hope u get it to work, and if you do u better post a ppf patch so i can play

edit: what would be cool is if u made the arrow have a sniper contrail, go to the bimpmaps and change all of the needle glow stuff to the sniper contrail. That should work
