Unsupported.
There was an helicopter for the FD in alderney (back when it still was a scripted FD) and it got massively abused, so it got
removed.
Even now with the state helicopter people tend to kill eachother somehow at missions just because they want to be fast.
At that moment they get suspected and in the investigation they'll be found guilty for the Acts 6.3, 6.4, 6.7, 6.9 and potentially 6.10 from
The Laws of Liberty City.
Also
these kind of topics could appear from some which we are not interested in.
We could better leave the idea of adding helicopters to missions, please.