what is FEDRA's long term strategy here?

as we know, FEDRA retreated to multiple QZ's scattered across the united states with all the military equipment they could bring with them, leading them to become arguably the strongest faction post-outbreak.

and surprisingly, the QZ strategy has worked fairly well up until recently, with stable supply lines, some level of shipping and communication between different QZ's if they have access to a port, and insuring the security of the people and soldiers within. and as of TLOU2, theyre still kicking and are actively waging war against The Ravens in New Mexico(?)

but what im really confused on, is FEDRA's long term plan. is there any? do they plan to eventually retake the USA? they no doubt ARE the best equipped faction with stable supply lines, the ability to mass produce equipment, and the most amount of manpower and armor (hell. they even have HELICOPTERS!), or do they plan to sit in the qz's and hold out for as long as they can?