Resident Evil: Apocalypse
Milla Jovovich (Alice)
Sienna Guillory (Jill Valentine)
Oded Fehr (Carlos Olivera)
Thomas Kretschmann (Maj. Timothy Cain)
Sophie Vavasseur (Angela Ashford)
Razaaq Adoti (Peyton Wells)
A virus called the T-Virus gets loose in Raccoon City, turning almost everyone into flesh-eating zombies. A woman named Alice, who was experimented on by the mysterious Umbrella Corporation, leads a group of survivors through the zombie-infested city to the perceived freedom of an Umbrella Corp. helicopter at city hall.
Also from this series:
Resident Evil series
The Umbrella Corporation uses several of these helicopters.
This Umbrella helicopter was originally intended to be used to transport Nemesis out of Raccoon City, however Alice and her group steal it and use it to escape.
Two of these attack Alice. One of them is equipped with a boxed machine gun on the undercarriage. Both are shot down by Nemesis' rocket launcher.