In Star Wars: Battlefront II, the clone sharpshooter is wearing airborne trooper armor, although in the film, the airborne troopers are seen with the standard Republic's DC-15S blaster, Clone Commander Keller wore airborne trooper-style armor.
These airborne troopers were developed at some point during the Clone Wars and served within the Grand Army of the Republic. At the time, they were involved in fighting against the Separatist Droid Army. In the final days of the Clone Wars, the 212th Attack Battalion deployed clone airborne troopers on the planet Utapau during a battle when General Grievous's base was discovered on that planetoid.
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