The Shuigang Helicopter (Shuigang Chopper) is a helicopter piloted by a Shuigang Soldier, the mid-boss of Sky Battalion's fire ship, alongside Spade (earth ship) & Penguin Blaster (metal ship) (Named by Nbvcndnmh) (You change to his true name if Nbvcndnmh is mistaken).
One of these helicopters is seen in the opening cinematic attacking Lord Brevon's forces and subsequently destroyed. Several more are seen in the Dragon Valley intro cinematic shooting Torque's ship down. There are also a few flying in the background in Dragon Valley.