Early in the Clone Wars, the Separatist droid army was often led into war by analytically minded tactical droids. Before long, the Republic was able to outmaneuver the tactical droids by exploiting their reliance on precise calculation and lack of imagination when dealing with the unexpected. Furthermore, the droids were spindly mechanics whose heads could be yanked off and scoured for vital combat data. Super tactical droids, like General Kalani, were an improvement over the standard tactical droid. Kalani's advanced processors and robust frame made him a threat to be reckoned with.