We now have some new archetypes and flownodes to be used in conjunction with these entities to control flying vehicles.
In the characters archetype library you can find:
They should be used as a replacement to the old archetypes from the c3_vehicles archetype library in order to get the navigation and behavior changes.
The new flownodes that should be used with these entities can be found under the Helicopter category:
The new AI behavior is implemented using the new modular behavior tree system and all of them are sharing the same one (HelicopterTree.xml)
The changes to flight navigation were done because of the unreliability or lack of functional behavior and complex setup needed. A test map for a bunch of cases that didn't work can be found in a test map called Suit_Disrupter.