Slitherine

The ad says that it's a stand-alone Expansion. Does that mean it will install completely seperate from the original?
Or, will it be just a campaign added on the Main Menu?
Or will I have a choice?

Beakie

If you've the original installed, it will be a campaign added to the menu.

If you install it on top of Panzer Corps: Wehrmacht it will show up as an added campaign to the main menu.

But as it is a standalone expansion, you can also install it separately as a new game.

I imagine most people who own already the original game Panzer Corps: Wehrmacht go for the first option, but the choice is yours, both are possible.

Thanks for the quick answers.... On my way to buy now...

Beakie