Good question. Officially: No. Inofficially: Kind of - I get the game for free which is already pretty nice. I MIGHT get some kind of monetary compensation, but I'm doing this mostly because of my passion for the most outstanding wargame that I know of.
If BFC considered offering me a job as a paid artist I might join up, but that's completely hypothetical at this point.
Man, they should pay you considering how big of a time sink and frustrating it is texturing for CMBN. What you see is definitely not what you get when it comes to the textures.