All what I can say is, unlike what Mr Kackzor said, I had nothing but bad experience with Ammo-Mig paints. All of them shine, even the oxid colours. It was a disaster every time I used them. The AMMO varnish was also horrible, and accumulates mold. His pigments/washes are all right though, and I enjoyed experimenting with them.
This tank was painted with an airbrush and tamiya paints. Of course I used my stencils. this was the first vehicle I painted with them back in the day. All the accesories were painted with the cheapest paints I found in a local hobby shop, called "Revell aqua" but Vallejo, or Citadel paints are much better. I'd say whatever you do, use acryls. Enamels are something from the past. I'd not waste a second looking for what was used, or for historicaly accurate paints. In fact it is said all the tools were painted in the same colour as the tank, but is us, modellers, the ones who want them to pop. I'd focus in doing what it looks good to my eye.
Once everything was painted, I sprayed some colour simulating dust. It blended everything together.


Oh, and of course I keep adding new details and parts to this tank. Last thing I added was a new confederate flag, because the older one was too small and with the wrong colours, and a spring in the antenna. I can never finish my toys. That articulable soldier will be replaced with a resin figure soon.