what content does next war add to the epic game can somebody please give details because im really exited about the future stuff

In my second game I loaded it as the epic mod (I think that is how it's called), where it adds new techs at the end of the tree with new units. I thought it would be cool to integrate it into a new game.

Unfortunately they come very late, and I didn't get a chance to actually use them. The way my game shaped up, I needed to do a diplomacy win and never saw the dreadnought.