I moved all of them to another folder so that D2X couldn't find them, and then I started playing around.
Guess what? I guess that they have a lot to do with D1 rendering, because everything worked normally until i got into D1: First strike. The effect is very interesting. Try it and see for yourself -- you might need to turn on a radar MFD... *hint hint*...
I'd love to see somebody beat Descent 1 like this

