i think there were ony 2 simple things that made GC great:

1. it was based on Star Wars, what more could you want!
2. it let you do things out of the ordinary like control droids, have space battles and walk around inside transport ships

This mod has definitely achived half of this already and from what i've read i think it's well on its way to achieving the rest!

(Edit ) Oh and i agree with the accuracy thing, the G3 is useless unless you stick it in someone's ear to fire.