Katarn Armor
this was the name given to the modified clone trooper armor that was given to those clones who were decanted and trained as commandos, during the early stages of the Clone Wars. The primary difference between the basic suit of armor and Katarn armor was in the electronics, which provided a wide range of sensors and communications systems to the commando's helmet and heads-up display. Commando-to-commando communication could take place entirely within the helmet, and no external sound could be heard to give their position away. Many of the Jedi Knights who worked with the clone commandos were ill at ease with the apparent detachment of a commando who was talking with his comrades. The commandos were obvious from other troopers by the weird, blue glow that eminated from their T-shaped visors. Unlike the standard clone trooper armor, Katarn armor was painted a dull gray, to help with camouflage. The training of a clone commando was intense, and although they were taught to obey orders like rank-and-file clone troopers, they were more independent in their missions. They were not as independent as the ARC troopers, though.