Combine Helicopter


 * As the Combine were originally to recycle or replace existing human technology, the original helicopter model was a human one, based on the Soviet military helicopter Ka-27. Another Russian helicopter, the Mil Mi-8, is featured at the end of Episode Two, in White Forest.


 * If one is to go to the Half-Life 2 beta canals, the chopper is flying and will shoot at the player, but it will not give chase.