Just assign the keys so that you are comfortable. Personally, using the WASD for movement, I find that sprint work rather well on X, instead of the standard C.
THE DEDICATED, CERTIFIED, RESIDENT MADMAN
There is no such thing as innocence in the ZONE, only degrees of guilt.
KNOWLEDGE IS POWER, GUARD IT WELL.
We are shaped by fate, just as we shape it
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Thought it would be hard coded. I could of swapped the walk speed with sprint but walk speed is also the drag speed.
I have always used the keypad & right mouse for run or sprint in my games. I later discovered Autohotkey, i can now use all keys around the keypad area & i also have a keyboard with 4 extra buttons above the arrow keys.