T-series tactical droid

T-series tactical droids were competent electronic commanders of the Droid Army. They were programmed to recognize battlefield tactics and to calculate the best possible outcomes. They were a necessity, considering that the CIS had very few organic military leaders when compared to the Republic. Tactical droids obeyed the highest in command, Dooku, over their respective leaders. They did not care for their organic counterparts and viewed them as inferiors. Their arrogant attitude made them effective in warfare but was a liability when working with organics.

Later in the Clone Wars, they were replaced with more effective units, the Super Tactical Droids. However, some still remained in combat, though they were few in number.

Programming
Some tactical droids had the word "Tactical" on their brow. Their rank presumably differed with color, like battle droids. Orange was a scout, or security squadron leader. Blue was a highly disposable, warrior or cavalry commander. Green was a general, or higher rank able to hold position in a Munificent-class star frigate. They were the same size as B2 super battle droids. Unlike OOM commander droids, tactical droids thought of themselves highly superior to other droids. In some circumstances, they would even destroy allied troops that blocked a victory or were otherwise, in the way.

Known Tactical Droids

 * K2-B4
 * TA-1313
 * TA-175
 * TI-99 Destroyed
 * TJ-55
 * TJ-912
 * TF-1726
 * TM-171 Destroyed
 * TN-123 Destroyed
 * TR-350 Destroyed
 * TV-94 Destroyed
 * TV-94B
 * TX-20 Destroyed
 * TX-21 Destroyed
 * TZ-33 Destroyed
 * Unidentified Tactical Droid (Christophsis)
 * Unidentified Tactical Droid (Coruscant)
 * Unidentified Tactical Droid (Florrum)
 * Unidentified Tactical Droid (Kiros) Destroyed

Star Wars: The Clone Wars

 * "Cat and Mouse"
 * "The Hidden Enemy"
 * "Jedi Crash"
 * "Blue Shadow Virus"
 * "Innocents of Ryloth"
 * "Supply Lines"
 * "Liberty on Ryloth"
 * "Grievous Intrigue"
 * "ARC Troopers"
 * "Landing at Point Rain"
 * "Weapons Factory"
 * "The Zillo Beast"
 * "Nightsisters"
 * "Shadow Warrior"
 * "The Citadel"
 * "Counterattack"
 * "Citadel Rescue"
 * "Padawan Lost"
 * "Plan of Dissent"
 * "Kidnapped"
 * "A Necessary Bond"
 * "The Jedi Who Knew Too Much" Appears on veiwscreen
 * "The Rise of Clovis" Head only
 * "The Bad Batch"

Star Wars: The Bad Batch

 * "Decommissioned" Head only
 * "Battle Scars"

Video games

 * Star Wars: Clone Wars Adventures Non-canon