As for a Faction I was thinking of something like a cult-ish kind of group, that have been around since the beginning of the end. Starting out before the worlds destruction that turned everything to ruin there was a corporation made up of scientists, researchers, doctors, and businessmen who prepped for what they assumed would be the end of the world.  

The corporation started 'Project Infinite'. The project was away to help the human race flourish if ever there was a apocalypse kind of scenario. The gave people the option of donating their sperm/eggs for rations/money/idk, and also the privilege of being interviewed for one of the limited spots in cryogenic freeze. This was all done as a way to preserve the human race, and prevent inbreeding among the predicted low percent of human survivors if ever a plague/nuclear/natural/war/alien disaster decimated the population of earth. A huge amount of men and women over 18 donated. And the sperm/eggs/embryos were sent to the station/vaults/safehouses/bunkers. The 1000 or so spots available for people to volunteerly go into cryogenic freeze also filled up quickly as the end of the world became more apparent. 

They also had 'Project Verity'. They wanted a way to keep and record history, and knowledge, without the use of the internet, or electronics that could be destroyed or never work again. And they didn't want to use paper/ink/books, as in the end of the world scenario paper would be a commodity and something to burn for warmth. Sadly this project didn't get any farther then the collection and storage of written/printed information. They created a library of knowledge, that they had stored in their station/vault/safehouses/bunker. 

Anyway the end came, and the corporation was lost, only a handful of the original scientist/doctors/blah that made up the corp survived. The corruption/greed/madness took over from the fallout, and all seemed forgotten. A decade later the last two living people who where apart of the corporation were Alexandra Galloway & Ralph Kross. They started what is now known as a faction called Asclepius. Every few years they would let one or two people out of CyroFreeze. Asclepius became more of a cult, with Alexandra and Ralph the leaders. They kept the knowledge for themselves, and only shared what they need to get people to believe and follow them. Decades pasted, and more people joined Asclepius. Ralph died of old age, and Alexandra took over grooming her own son, Jonah to take over after she died. With Ralph dead, Alexandra opened the door to the hidden knowledge, albeit she kept a tight reign on what info. She trained [i]her[/i] people in the lost knowledge of medicine, science, agriculture, humanitarianism, and other languages. Things such as history, culture, wars, philosophy, and religion she kept guarded and hidden away, as she wanted to create her own utopia, she created her own religion, rules, laws, code of ethics, and morals. 

Its been centuries? since then, and Asclepius has become one of the biggest and well known of the factions, taking up an entire town/city as their territory. They are devote, and practically all adults are trained as ether a doctors, surgeons, scientist, adept farmer, teachers, or priest(Keeper). 

blah blah.... I have more and can go on, but what do you think? Would this work for a faction?
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