[Pyros]

Concernig the elevation lines:

They start from aprox 400 meters and they go up to 800 meters.
Each line represents 100 meters of altitude elevation.

This means that you may define the map editor elevation as following:

First elevation ratio: 400=0, 500=1, 600=2, 700,3 & 800=4

Second elevation ratio: 350=0, 400=1, 450=2, 500=3, 550=4, 600=5, 650=6, 700=7, 750=8, 800=9 & 850=10

Third elevation ratio: 366=0, 400=1, 433=2, 466=3, 500=4, 533=5, 566=6, 600=7, 633=8, 666=9, 700=10, 733=11, 766=12, 800=13 & 833=14

cheers,
Pyros