Hmmm... They look cool, but i think you probably blacked over the alpha texture (red, green, blue, or yellow), so there's now way to tell what team they're on...
But if you changed the alpha texture of a faction (like the red player one) then that would be even more awesome!
BTW I think it is possible to change the alpha texture without coding, just find the solid red (or other color) tiff in the glest directory...