NR-N99
this was the Corporate Alliance's version of the tank droid. Although the NR-N99 was original manufactured to "persuade" businesses and corporations to join the Corporate Alliance, the majority of these droids were produced for use by the Confederacy of Independent Systems during the height of the Clone Wars. The design of the NR-N99 was based on a treaded platform that used a huge, central tread to drive the tank droid across terrain, while outrigger treads provided stability and additional traction. The NR-N99 was armed with a pair of heavy-duty, modular laser cannons that could be reconfigured for various types of engagements. Early versions of the NR-N99 were equipped with droid brains, although this configuration was later dropped in favor of a tank droid that was piloted by a droid operator. With the end of the Clone Wars, all NR-N99 tank droids were issued orders to deactivate, as part of Darth Sidious' plan to consolidate military power and ensure the loyalty of his troops.