http://forums.steampowered.com/forums/showpost.php?p=10029248&postcount=12
It is possible to disable the orange view for infected and just have the same colours as when you're survivor, while still being able to see in the dark, as you already can.
The process involves saving a blank file from CS:S's Colour Correction UI and using that for the infected colour correction file in L4D.
It's not changing anything visually asides from removing the orange filter, which seems to be just for effect. What say ye? Legal?
Cheers.
Edited 4 times, last edited 23/5/09 - 11:08pm.
Posted on Saturday, 23rd May 2009