It would be, it would be. The problem would be, that if I really was about to write such a tutorial, that there would be hundreds of pictures needed and tons of text. (One weapon takes about, well, 6 hours +)
And even if I did it, it would still not be possible for some people to use it, since I use shareware and not anybody uses 'Photoshop Audition' or 'Microsoft Excel' or is able to buy 'Alias Maya 6.0'(which is unavoidably needed and didn't see it on eBay yet).
So this tutorial could possibly be used by 1 or 2 in this community only and they possibly do not have the Game they want to port from.
I think you're getting my point, I'm sorry. If you handed me some money over, I would create any weapon you wish, but no tutorial.