Alien Swarm: Infested 'Swarm Buzzer' Trailer

Here is a short movie clip of the Swarm Buzzer flying.
The Swarm Buzzer is a fast, highly mobile Swarm variant. Typically found in groups, they swoop down upon their prey, both gouging the victim with their tusks and injecting it with a disorienting poison from its stinger mouth attack. Battlefield resea