It is exceptionally rare for irregulars or guerillas to " transition" or "evolve" into full-fledged conventional military operations against a modern, first-rate opponent. Generally, guerilla forces beat state opponents by becoming more effective at guerilla warfare and causing a psychological and moral collapse of the state's will to resist; and only after seizing power, do the new rulers transform their guerilla fighters into professional soldiers...
look at the Rwandan Patriotic Front/Army 1990-1994

Best
Tom