just watched the video:
awesome weapon style, don't change that. two things need work: the level (I'm assuming it's a test level: "since graphically I have nothing to show").
I would really simplyfy it: better geometry, but less detail in the texture, it would give it a nice fun style.
Secondly, I don't like the last gun's effect (in the video), you should really change that to fade out much faster. It looks weird when you can walk through a beam that you just shot.
sounds and models match nicely, so do the weapon effects.
How about a rocket launcher and mines?
