As Mole states..
Quote:
91 Black Green
30 Dark Green (this is the base colour that everything else gets painted onto)
96 Chocolate
63 Sand
147 Light Grey
It's odd, because having seen a screen used set in the flesh, the lighter of the two greens looks remarkably close to Humbrol 80 (possibly typo in translation??).
And the Matt Sand does seem very orange, where the one that I saw was definitely a paler, bleached colour.
Also, the grey, is almost white, so maybe a couple of shades darker.
The latter lot, are all my opinion of course, and I'm only going from what my eye saw.
When you look at the pictures of the screen used stuff on here, you can see a million different shades, and can make a million different choices.
In the end, stick to what everyone else is using is what I say.