Not trying to be mean, I think you are just being a noob, at first it seem that way until you figure out a good build, the mission against modern battleship was so easy, i had 4 ships all decked out with the latest gears and pwned the modern battleship easily, You need to take a look at the stats such as armor, range finders , towers, gun size, shell types etc, it all have pretty detailed stats I bet you didn't know you can set how thick the armor be across the ship, go down to bottom u should see a bunch of numbers you can increase or decrease armors as you see fit. I had four battleships but they all had decent armor and guns! didn't even bring the heaviest guns, just 5 triple 14inch with super heavy shells. while they aren't as advance or as long range as the modern battleship, it doesn't matter, i have 4 relative modern ship vs just 1 ai build dumb ship and i didn't even lose a single ship, the challenge is also angling your ships as well, they can take a lot of beating before go down if you angle correctly the AI modern battleship was broadsiding entire time so my 14 inch was more than enough. Pening it left and right, but man that ship can take a beating.