Actually, I have never heard of the Fallen nor Elite Force before. I might have to check that out. I see I'm not the only one with great ideas...
Well, when I was theorizing about removing the arm/weapon model, it was because you already see you real arm holding the wii remote. With keyboard/mice and controller set ups, this does add a nice touch of realism. However, since the wii is set up to give you that sense of freedom and liberty (like holding a gun) the arm isn't needed. Kinda like Lethal Enforcers or Virtua Cop.
You know, I hate to go off topic but I think the Wii could revive the on-rails shooter. No one would need to buy an extra peripheral, the wiimote is all you need.
It's little things like that that get me excited about nintendo's new console.