A Command and Control Node is a sophisticated T'au artificial intelligence (AI)-assisted communications system used by a T'au Commander to communicate more effectively with other Fire Caste warriors around him, and better direct battlefield operations by linking together all nearby T'au targeting computers.
Though the sheer amount of information received can seem overwhelming, a T'au Commander who masters the flood of data can better orchestrate the firepower of his forces and drastically improve their accuracy.
- Codex: Tau Empire (4th Edition), pg. 26
- Codex: Tau Empire (6th Edition), pg. 73
- Rogue Trader: Tau Character Guide (RPG), pg. 35