Thank you all for your answers.
Isn't the tile has tile number stated on their back? It is hard to tell from the pictures you put up. Why don't you just ask the dude who sent you the image?
There was no "dude", the image is from the game gallery.
Just play with the duplicates. Randomly select them, don't worry about the numbers. The different scenarios are unique because of the number of ridges. If you just want to get out there and bust some tanks, play Iraq and don't even worry about it.
Really, you won't even notice. It might be more or less of a challenge, that is all.
From the info I've read in the forum I was under the impression that the ridges made a big difference because of the low altitude. And since sheet 3 has the hex tiles with most Ridges it would have a big impact in gameplay.
Just verified in Vassal module that hex sheet 3 is:
Thanks for the tile numbers. And I didn't know this had a Vassal module, now I can get some mockups to try the game properly.