District 12, the home of Katniss Everdeen, has been destroyed by The Capital's firebombs.
"Soldier Everdeen," Gets drilled for combat and then receives her new arsenal, a flexible armor of Cinna's design, extra armor plating, a new, smaller earpiece, a gas mask, and finally, a special jet black bow with a selection of normal, incendiary, and explosive arrows.
District 13, the home of the rebels, has become under attack by The Capital's bombers. On the roof of a building in 13, rebels man machine-guns alongside Katniss and her bow.
While moving down the streets of The Capital, "The Star Squad," encounters the Capital's Peacekeepers. The Capital releases their ultimate weapon, horrifying Muttations. Armed with teeth and razor-sharp claws, they begin to murder the Capital's Peacekeepers.
Instead of shooting President Snow, who's dying anyway, Katniss shoots the rebel leader, President Coin. Katniss finds out that Coin wants to take President Snow's place as president of The Capital. She has been using Katniss all this time.