PALGN writes: "Air Force One is in trouble. Besieged by numerous trigger-happy mercenaries, the flying residence of the US President radios for help. High above the smoking ruins of Washington DC, you and your state-of-the-art fighter squadron are the only friendly reinforcements within range. Despite running dangerously low on anti-aircraft missiles, you angle your aeroplane towards the horizon and step hard on the accelerator, answering the desperate call for assistance. "You take the ones on the left," you yell at your wingmen, while lining up against a trio of enemy fighters. Your heads-up display turns red, indicating a solid lock. A heat-seeking rocket is unleashed from beneath the aeroplane's wing, soaring faster than the speed of sound towards its designated target."