Sorry if I don’t post in the right thread or if it was already addressed but my search regarding the topic was unsuccessful.

I’m intrigued by the coastal custom battles. What are the differences between coastline and waterfront battles?
In the same order of idea, for the ambush battles, what are the differences between ridge and wetland battles?

I don’t own the game but I saw youtube videos showing these settings and this intrigues me a lot.

Thanks