This game would be hella fun to do some retextures and skinning. However I can't seem to find the knowhow to do it. I was thinking maybe a bunch of skins and sounds to make just about everything fire blue lasers? Or maybe to get rid of the tracer rounds. Doing some character retextures would be good too, they look very bland.
I tried opening up the .ncf files with GCFScape, but there were no textures there aside from the textures for one alien. I believe that I have the same problem with Left 4 Dead. Anyone have any idea how I can get the texture files and get started?