The helicopter for evacuation (Phantom Doctrine)

tourent
In support of the need to activate it as a sniper observer Il

Darcs299
Writes that not been studied and built so you can not use it. At what stage of the game the helicopter can be used?

tourent
we must buy and then use as a sniper with a silencer example

This is a bug, buying and setting to use, when trying to select a helicopter to evacuate in the box provided that is not designed and cannot be used, but the helicopter regularly flies in and evacuates