First the raw footage is shot before a green screen with actors using toy weapons. Then the green screen is removed in After Effects. Next new footage is imported into Combustion where the background is put together with images acquired from various sources (either provided by the client or by t-Squared). The scene is put in motion in Combustion and special effects (muzzle flashes and exploding ordinance) are added, while Photoshop is used for making the helicopter blades turn.