on pc:
e.g. ALT + Mouse wheel up = Increase walk speed up to running
e.g. ALT + mouse wheel down = Decrease walk speed down to dead sneak
at console:
same function just relate it to the stick.
You push the stick a little forward = slow walk speed.
You push the stick max forward = max walk speed.
Why do we need this I hear you asking?
Well, cause its always good to have precise control over in game movement and have the option to adjust you walk speed upon the situation.
Just wandering around or sneaking for some deer nearby or lookin for those tracks in the high grass - well now you can slow down and dont need to rush anymore.