The Syndicate-
After the Great War dozens of gangs took control of Chicago and in 2254 the Enclave Chicago outpost managed to unite them under the Treaty of Chicago, forming the Syndicate. They had decided there symbol would be a crow rising into the air. The Syndicate is one of the most rich and powerful groups in the MW, they are never attacked or challenged by any other faction. That is except the Radiation...
The Radiation-
When the Circle of Steel (The name of exBoS members in Van Buren, I thought it would suit the MWBoS) began killing mutants (Barnaky Ending) a large number of ghouls band together to form the Radiation. There symbol is the symbol for radiation. They believe that the Great War was humanities next step in evolution and ghouls were meant to take over the planet. The Radiation also has managed to make born ghouls (also from Van Buren) and they use captured humans as slaves.
The Mutant Liberation Army-
A group of mutants who banded together to fight the the facist CoS (Circle of Steel). Over the years they have grown from a resistance to a powerful faction. They are based out of St. Louis where an actual government is being formed.
The Circle of Steel-
The MWBoS after the Barnaky Ending, they wouls have had absolute control over the MW if the MLA and the Radiation hadn't been formed. They once had such large numbers that they could regularly patrol most of their territory but now almost all of their troops are pinned down in bunkers and settelments. Their symbol is a steel ring with two BoS symbol swords throigh it in an X formation.
What do you guys think? Post your own ideas if you have any!