Radical
Radical factions are made up of people who join in swift moving movements. They are typically unorganized and volatile, short term organizations hell bent on one or two goals. Very few radical factions survive their necessity. When they do become more structured they usually become a faction of another type, but it is always quite possible for them to spin up like flame wheels and burst under their own weight.
“Radical factions spring up, serve their purpose, then tend to dissolve when they’ve either met their need, or their cause is lost.”