enable key bindings to be changed, include instru'

The abilty to change kley bindings would be really useful. I'm left handed and use my left hand for mouse control. so my natural movement keys would be the arrow keys. I find it uncomfortable using the #WASD keys. It would also be a nice addition to include lean, prone and kneel keys, each one giving differenc e accuracy levels to shooting. A zoomed scope for shooting or at least iron sites would also make this a much better FPS game in my opinion. Including different levels of difficulty e.g. easy medium and hard, where the hardest level could be made by having fewer weapon stashes or less ammo and more OpFor (Opposing Forces) wandering about. Finally, it would also be nice to be able to create more than one profile and include a high score table.