B2 Super Battle Droids are well known to shoot from their wrist blasters and rockets. They are an upgraded version of the B1 battle droids, with superior weapons, armor and silver plating. Unlike other Enforcers, the Super Battle Droids don't have a grenade to throw. Rather, they have a wrist rocket that will do a considerable amount of damage upon contact. This means that their explosive ability can't be defused by the officer class, thus it has to be avoided entirely. This, combined with the wrist blaster doing higher damage than the average blaster, higher rate of fire when Overload is activated, and extra health that can be gained with Fortify, means that this class is best played aggressively to overwhelm opponents.
The Super Battle Droid's voice is from the 2008 animated television series Star Wars: The Clone Wars, which had B2 Super Battle Droids speaking with a low, deep voice. In contrast, Revenge of the Sith had B2's speaking with higher-pitched voices.