For Take On Helicopters, a 4 vs 4 TDM map with two teams (OPFOR vs BLUFOR).
You have to land on a specific spot to change the flag's color and meanwhile prevent the other team from taking it. You get twin M134 miniguns to shoot down the enemy helicopters. One team gets the white light helis, the other teams gets the black ones.
You'll get an explanation how the scoring system works in the mission notes.
The actual area you'll need to land at to capture the area (trees and buildings around, so be careful):
For orientation the flag is in an area with three large masts, and the flag is also marked on the map: