Star Wars: Wild Space
Formerly the Sector Besh-5 rebels responsible for damage and theft of Imperial property. Their propensity for taming and training the xenosaurs of the dark sectors makes them fearsome opponents capable of terrible feats of brute savagery.
The rebels hastily abandoned their mountain-top home in the wake of Operation Clean Sweep. While the 57th Imperial Infantry Battalion and the 424 Recon Division were stymied by an army of rebel soldiers, they eventually discovered their hidden rebel base and marked it for bombardment.
Their leader, Sandal Mane and his soldiers, survived and have since hidden themselves deeper into the unknown sectors. ISB analysts surmise that their spirit has been broken and will unlikely be a threat in the future so long as they are not allowed to establish themselves.