The Grand Army of the Republic
B2 Battle Droid
B2 super battle droids are an advanced battle droid used by the Confederacy of Independent Systems. Super battle droids are much stronger than their predecessors, and they do not require a command system to operate, which gives the droids limited independence. Another improvement is their thick armor casing, which contains their fragile sensors. However, B2s are designed with simple processors, limiting their ability to formulate strategies. As a result, they rely on organic commanders or tactical droids in order to effectively operate.
While most B2s use twin wrist blasters, some are equipped with a cannon arm that can fire homing rockets. Other, rarer variants also exist, often making use of infantry weapons rather than built-in armaments.