I don't have a screenshot, but just before the end of your escape ( just before the tunnel collapse ), there's a purple 'fluid' on the ground. Didn't look quite right. Driver problems? Anyone noticed that?
ok thanks, I'll try when I see another one. But part of that purple had a very square edge, so it looked like a messed up texture. Oh well, just another example of the "stellar" texturing in this game.