Clone Force 99, informally known as «The Bad Batch,» was a clone commando squad led by Clone Sergeant «Hunter» during the Clone Wars.

The squad consisted of four clone troopers with specially designed genetic mutations. «Crosshair,» a clone with brilliant eyesight abilities, «Wrecker,» a reckless clone with enhanced muscular form, and «Tech,» a clone with enhanced mental capacity and intelligence. They were led by Clone Sergeant «Hunter,» a clone with enhanced sensory abilities. Each member of the squad had a skull icon on their clone trooper armor, which could be seen as their unofficial logo and helped set the four apart from other clone units. They called normal troopers by the nickname «regs.» Following the Battle of Anaxes, Clone Corporal «Echo» joined the squad.