'Copter  
Cost: 8
Speed: 8
Cargo: 1
Copters, with their maneuverability and ability to land temporarily in rough terrain, make formidable combat units.

Copters should return to a friendly base or airbase at the end of every turn for refueling. If it is unable to do so and must land temporarily in the field, it incurs 30% damage.
 
Requires:
  Mind/Machine Interface