Already posted about this on the steam boards so I'll just copypaste it from there:
"Just wanted to give you guys a heads up, that after roaming and plowing through thhe "modding" thread at http://forums.obsidian.net/index.php...c=55422&st=195 and the great neat little fixes there are posted and tinkering around them myself I came up with a pretty much best way of implementing "walking" into the keyboard+mouse combo on the PC.
All you have to do is go to ...\Steam\steamapps\common\alpha protocol\APGame\Config , open the DefaultInput.ini file and edit the following lines:
Exchange the first 4 lines just after ";General Bindings" to:
; --- General bindings
+Bindings=(Name="MoveForward",Command="Axis aBaseY Speed=0.2")
+Bindings=(Name="MoveBackward",Command="Axis aBaseY Speed=-0.2")
+Bindings=(Name="StrafeLeft",Command="Axis aStrafe Speed=-0.2")
+Bindings=(Name="StrafeRight",Command="Axis aStrafe Speed=+0.2")
and add these lines after ";Player Movement"
And save it.
This way your Mike will now be able to walk and actually sneak instead of doing his little rearend dance with just holding the LeftAlt key. "
Biggest thanks go to users Spiked and rick of course
