So who is the Burning Sands sandtrooper squad and are they mentioned anywhere else? I was flipping through a Star Wars book and it mentions the Burning Sands Sandtrooper Squad in the description of the T-21.
"The T-21 proved a common support weapon for the army and stormtrooper squads. For Example, the Burning Sands sandtrooper squads sent to Tatooine to recover the droids Artoo-Detoo and See-Threepio used T-21s as their primary support weapons." (Smith, 1997, p.12-13)
Smith, B. (1997) Star Wars: Essential Guide to Weapons and Technology. New York, New York Ballentine Publishing