i haven't really studied this but from when I glanced u can see where the beam is coming from...it shows the beam just under the weapon...further investigaton or screenshot is warranted
Yeah but since then they know exactly where you are, a few blind shots in your general direction would kill you.
Anyway, I thought it was coming right out from their hand (Pistol anyway), and it just looks freaky. I think VALVe have had a hard time implementing it properly since you can get things like Dual elites, two handed guns, and pistols, they just need one place to put it.