After all my other questions, and the great answers I got from here, my model is starting to look like the real thing (although in MHO) but there's one #:-) more thing I'd like to know;
what are those square markings (or are they loose panels) on the front of the turret, left and right?

I know I can just paint them, but I was curious what they are and what they do...
Thanks AGAIN,
Jurgen