The Kamov KA-50 attack Helicopter.
This helicopter is among the most advance, heavily armed, and most thoroughly armored rotary wing aircraft in the world. It is highly maneuverable and
boasts a highly efficient coaxial main rotor system. It requires no tail rotor to counter act single direction torque that you would find in all US
rotary wing aircraft. This is highly advantageous because the tail rotor system tends to use a lot of power and if you lose tail rotor in an AH 64,
you die.
This design improves the aerobatics of the aircraft. It can roll, loop, and perform a maneuver called "the funnel" in which it maintains line of
sight of it's target while circling it.
It is faster than the AH 64 which has two T700 GE 701D engines producing 1600 shaft horse power.
The KA-50 has 2 twin turboshaft engines producing 2200 SHP per engine. More than enough power to run it's highly advanced avionics suite, comms
system, and coaxial rotor system.
By all accounts the US is highly outclassed by this formidable war machine.