first take down all guards then go to the right and crouch at the sidest wall then the
helicpoter arives do not move then when it moves to the other side then hide to the
closest tank and then the helicpoter goes sideward hide on a tank after that helicopters
cols its minigun fire at it but always memorise when its gonna atack when the pilot says
im hit chase the helicopter when it lands take out the guard then hide. after that when
the helicopters health bar is lower than half its stays in the middle when it gets smoke
then do not go near the helicpoter and go at the backside of it and just go wild firing