The year is 2055, more than thirty years after the events of Zero Hour, Earth suffers a catastrophic collision with meteorites. The world is thrown into turmoil as large swathes of land are annihilated. Four factions, the ADF (Asian Democratic Federation), WEA (West European Alliance), WLF (World Liberation Front), and AC (American Confederacy) are at war for control of the remaining already harder to find resources as well as the preservation of their nations and geopolitical interests. Welcome to Deep Impact.
In recent years, the American Confederacy has begun phasing out some of it's older fixed-wing aircraft, most notably the AC-130, also known as the Spectre Gunship from previous campaigns. Rather than completely scrap the concept of a close-support aircraft, however, the Confederacy's brightest minds managed to rebuild the old howitzers from the AC-130s, and fit them to the wings of one of their latest helicopter designs under the new name of repeater cannons. This amalgamation of old and new was deemed the Sioux, a helicopter capable of dealing heavy damage at close support range, removing the need for the old AC-130, as well as providing a support platform that was capable of providing support for more than 90 seconds. The new helicopter frame was also of monumental design, removing one of the major flaws of all previous rotor designs - the need for a tail rotor.
With the unique NOTAR, the main rotor's torque is cancelled by a high volume of low pressure air expelled close to the tail-fins, thus changing the boundary layer of air, and stabilising the helicopter without the need for a tail rotor, a critically vulnerable part of all helicopter designs up until this point in time. The new design makes the frame far more hardy, and capable of absorbing far more damage than any other helicopter to date. To further increase their effectiveness, the Siouxs were fitted with state-of-the-art Anti-Tank missiles, cleverly housed in old-fashioned pods to fool opposing factions. Due to this old-fashioned design, the number of missiles carried is massive, but the reload time is rather long, due to the cramped space for the reloading mechanism. The Sioux is in every sense a modern support platform, and their use can quickly turn the tide of any battle.
* High armour and good resistance to damage.
* Heavy damage output vs ground targets.