Six shelters are holding out (watch which side their door is on), with more people hiding inside the buildings and stranded
on the rooftops. Land near them, let them run aboard, and fly them home to the
pad at the far left, where you also refuel and repair.
Bring 60 home and the district is saved. Everyone, with nobody turned, is perfect.
Controls
WS
climb / descend (land with S)
AD
fly left / right
QE
turn the nose; hold to spin
Space
door guns: weapons free / hold fire
F
drop the soldiers aboard
R
recall the soldiers on screen
Shift
hard bank
Nose-first, the chopper flies faster. A gamepad works too.
Stay alive
They come to noise. Low and loud draws the horde. Fly high to stay quiet.
Rotor into a building is fatal. When the copilot yells "Pull up!", do it.
Clingers grab the skids and drag you down. Hold Q or E to spin them off, but spin too long and passengers fall out.
Keep a soldier aboard. If one gets into the cabin, he shoots it. Nobody armed? Spin it out.
Soldiers rope onto roofs (hover under 15 m), go in and bring people up. They take seats too. There are six of them, and they have names: bring them home.