This game I play on ring world on the difficulty before the last one. 3 of the AI's are in the Information Era. 2 of them are no more. And me, I'm just after the Industrial Era. But with this 12 level frigate, even the battleships can't stop me :) Well there are 3 crazy frigates... and an Ironclad. With all 12 levels, the frigate can fire twice and run back to hide, while the ironclad is expendable.
All screenshots for Civilization 5: Brave New World.