Agree, players should not be locked down in such a way where they cannot move. Adding a movement system allowing players a more realistic freedom within/on vehicles would be better. Large helicopters, planes, ships, hovercraft, etc would greatly benefit from this.

I agree that the model needs some work. I like a more realistic flight model as this discourages people that don't understand flight dynamics from crowding the servers with poor flying, such as Battlefield type games. However the choppers do lower quite slow and need some more weight. In comparison with something like FSX on Hard, the altitude physics are not implemented well. Definitely an improvement from OFP but still needs some work.

I believe this should be fixed, I have seen Blackhawks at airshows land at slow speeds.