Quoting Brickdoctor -
Although the Z-6 lacks some key elements, such as the angle of the trigger and the rectangular mid-section, it's a definite improvement over most I've seen. The PLX is terrific, compared to the 2-D anime-type Clone Wars series, but it's really also lacking in detail. It also has a rectangular mid-section, as well as a sloped stock. The best resource I've found is the video game Empire at War, although it displays the PLEX, not the PLX, which is used by the Rebel Heavy Trooper class. If you go to the EAW site, they have screenshots of every unit in the game.
Thanks, the missle launcher seems accurate enough to me but I can see what you are talking about.