Mechwarrior4 Controls
Function/Controls
Throttle +/- Keypad Plus/Keypad Enter
Chassis Left/Right Keypad 4/Keypad 6
Turret Turn Left/Right Mouse Left/Right
Turret Tilt Up/Down Mouse Down/Up
Eye Point Left/Right Left Arrow/Right Arrow
Eye Point Down/Up Up Arrow/Down Arrow
Zoom In/Out Middle Mouse Button
Recenter Torso N/A
Radar Off/On Keypad *
Light Amp Keypad -
Jets On Keypad 5
Reverse Keypad .(del)
Flush Coolant \
Target Neareast Enmy Page Down
Target Next Enmy End
Fire Weapon Mouse Left Button
Cycle Weapon Group Right Mouse Button
Change Firing Mode Keypad 0
Fire Group 1 Keypad 1
Fire Group 2 Keypad 2
Fire Group 3 Keypad 3

I had some problems getting every key to work when I set it up but eventually I just kept fooling with it until every button worked when I pressed it. Good luck with the controls, if you use a mouse and keyboard I hope they work out for you. Let kick those joystick peoples butts., if you need help setting them up let me know. Good Luck!!