World War I - How Many Levels?

[anmattos]

Dear Sirs,

Does anyone knows how many leves World War I has? I´m in the entente campaign, in level 4, but I would like to know how many they are.

Thanks,

[anmattos]

The game has 30 levels. 10 for the Entente, 10 for the Germans and 10 for the Russians.