Changing enemy skin?

[DeAngelo]

I looked int he dae file, which is over 4000 lines long holy crap, and couldn't find one instance of the dds file found in the original grunt's folder. I'll keep working at it. Like I said, it might not be possible without modelling knowledge.

Edit: I just tried replacing the original DDS file with mine and it works. Unfortunately that won't make it look any different in other people's games, unless I told them to replace the file themselves, and I doubt anyone would be willing to mess with their game files in that way just to play 1 custom story.