Aircraft simulators are one thing - all planes have a certain inherent stability for a start, that being the wing itself - but helicopters are another matter.
To fly a helicopter, you need a pilot's licence just to step in the cockpit. This suggests that, maybe, helicopter simulations should be considerably more directly behind the helicopter, with the undulating landscape rushing by in glorious 3D. A static vertical strip on the left hand side of the display shows your height above the ground.
This display can be toggled to a map display showing a small portion of the playing area, which is big. Played in real time, this means it takes a while to move from base to base, so it's vital to have some kind of strategy.
A number of weapon systems can be carried, although it goes without saying that if you're carrying a surfeit of hardware on board, you won't be able to carry many reinforcements.