In the movie, Mountain Banshees appeared frequently on camera. The Na'vi clansmen had relied on them to establish a formidably unrivalled aerial fleet. Moreover, there was even a rite of passage for one to become an Ikran Makto (Banshee rider, according to the Na'vi language). Riding one was akin to riding an Audi A6 in the present world. Of course, the Great Leonopteryx that the main lead, Jake Sully, finally succeeded in riding, could be compared to a Rolls Royce.Silver Ghost; which was the only one worldwide.
At the hundred metre mark, those 7-8 Mountain Banshees segregated and dove down in spirals; splitting into 4 groups to assault the 4 different regions of defending contestants. Currently, the long range combatants naturally started firing at them. Concurrently, a sentry started yelling loudly.
"Sightings of countless fast moving creatures from a distancet; I reckon they are a viperwolf pack, quantity of 50 - 100 heads!"