Could there be an option to use custom sounds? I already found a way to use custom textures for the beam itself (fiddling with the Lua files...:D) because the existing ones are UGLY AS HELL when sized up. These are beam weapons, right? Then they should LOOK LIKE beams, not just some ugly tilted column. For example, the Ion Cannon texture from Homeworld2. Those are the nicest energy beams I ever saw. The PCA is even better, but it needs to glow to not look as a tilted column.
Oh and, if we're already talking about HW2, what about some other eye candy? For example, making the laser beam GLOW?