* TrackIR support for player view control (optional instead of using stick controller)
* User configurable axis to controller GUI (TM WartHog split throttle control of the tank tracks, or rudder control; stick to control turret)
TrackIR is rather low on our priority list. Here's why:
It appears to me that it would be useful primarily in the vehicle commander's position while unbuttoned. Granted, if you do play the role of the vehicle commander, chances are that you will spend a substantial amount of time in this position. Still, it appears as a very limited application. It's different in a racing car or in a fighter plane. Here the player is glued to one very specific cockpit position, with both instruments and adversary positions to check continuously while maneuvering the vehicle. Here it absolutely makes sense to support TrackIR. Also in a first person shooter, I can imagine that it has its place. But Steel Beasts Pro has only a very rudimentary driver's position which, I assume, is hardly ever used, and there is no first person shooter mode - at least not while you move.
The second request - well, it was a deliberate decision that the player may control the vehicle only in a limited way from any non-driver's place position, simply because reality is even worse. The turret crew can direct the driver only through talking. In SB Pro it is already simplified that the reaction time of the driver is near zero. If at all, we should make things even worse, with at least half a second delay between command an execution.