The only lights in the system I do believe is ambient light, and directional light.  The tunnel model is set to use emissive color.  Which can only be used if the speculars and no _glow textures.  The _glow textures forces the textured animation to leave behind the 1st texture used, the one that it applied to the model.  It's a limitation in the game.  But, changing the ambient light and directional light is easy enough.
@Saquist  What would be your suggestion?
@JimmyB76
Yeah, I'm hammering out a bunch of stuff I have unfinished.  It seems quiet here.  But hopefully, I'll bring back some attention with these eye-candy mods.  lol