To make a good shadow mesh you need simpliefied model (preferably a bit smaller than main mesh) covered with meshshadowvolume.fx shader. If your model is low-poly, you can just copy it insted of making new mesh and it will work pretty well, too.
If the fighter is too bright, there is probably something wrong with a spectacular map (texture's alpha). Maybe you just left it white?
Laser color is a coder's job. But if you mean muzzle flashes, w_laser_small2.dds is a file you need.
BTW Very nice model I must admit
