After all the damage you've done to both sides of this revolution, Doc Burnett needs you to get medical supplies so that he can help you make things work. Fight alongside IGN in Homefront: The Revolution in the missions "A Man of Peace" and "Assault on Precinct 15" in the act The Rookie.
The key to taking down the KPA is to arm the resistance fighters in the war to come. Unfortunately, the KPA are about to strike the Resistance armoury. Take the mission Zero Hour in the Ambush act in Homefront: The Revolution to secure the arms and prepare to fight.
In Homefront: The Revolution, you need to win over the people of Philadelphia from their KPA overloads. Convincing people to fight back against them is hard, but once you win over their hearts and minds, you'll have a wealth of new comrades to stand at your side in the fights to come.