Currently, when prone if the player hits the stance adjust key (Ctrl) + down (S) he will go to the low prone position, down-rolling slightly to the right.
It would be great if the player could choose to which direction the low prone is performed. Using the "step lean" key combination would work well for that (while prone, hit Ctrl + A or D).
Also, being able to aim down the sights while in this position could be useful, even if mouse movement becomes somewhat restricted then.
Agreed.
As it is right now we can only take advantage of that stance to shoot from right sided corners
Yep, agree wholeheartedly with this suggestion. As it is now, I feel the urban prone is of very limited functionality which is quite unfortunate. Also, the ability to make small but precise adjustments to one's position while in the low prone by snaking or wriggling around slowly would also greatly enhance it's usability.
Left-side urban prone should be useful for right-side cover,since ArmA doesn't have left-hand shooter