It is unknown what motivations of Rouges are. They can be separatists, political or religious extremists, nazists, common criminals, dissidents, whoever else and/or all of the above. All that is known is that they will attack any Coalition object on sight. They use current Coalition situation with Nomads and Dom'Kavash to fight off some living space and time, albeit should Coalition fall, it would be them to be a next target to the spearhead of alien assault.
Their fighters are identical to Coalition ones. They don't have capital ships, albeit render of Coalition Rouges Juggernaut for Crossfire 2.0 was seen, implying that faction will receive their own big ships. They are often encountered throughout New Mekka, Er Riad, Meschhed, New Hongkong, New Beijing, Guangdong and Kalinin systems, also they appear at Planet Murmansk and Borodin Space Station in Sovetskaya. They are extremely dangerous as they, among other equipment, carry five Coalition Gatlings. They also can be met in significant numbers, only most experienced pilots can survive this if they are hostile to Rouges.
Chkalovsk Rogue Base - New Beijing