How do you delete the firstperson view for weapons?

There are many ways, what exactly are you planning on doing this to?

I think the best way to do that is to force 3rd person view on that weapon. Look it up in a lightsaber .odf or something.

unit odf, not weapon, ForceMode = 1 //force 3rd person
ForceMode = 2 //force 1st person

If you want the unit to have first person but the weapon to be invisible, just make an invisible weapon mesh (no XSI needed - just copy the weapon geometry, copy the texture and rename it, skin the texture to be invisible, and hex the new texture name and transparency into the weapon mesh).

In-game, in first person, you'll see hands that hold absolutely nothing but still shoot ordance. Why you'd want that is beyond me, but hey, you're the one that asked.

thanks