Surprisingly empty. Anyway, will there eventually be a Tank? For important trench crossing moments.
"Surprisingly empty"? I assume you're talking about LandTraveller Public Alpha Demo rel. 13 on February 18th, 2016. As for a tank, although the idea of constructing your own vehicles to drive over the land is enticing (especially considering how destructible the world is in games like these), there aren't plans to implement this until after the base game has been finished.