There are many ways around this problem Stian, but I would get used to handling a few ships before taking on a larger Fleet action. When I get time I...
I treat the firepower like a ship each side has the same and it falls with the attrition.
For explosion, that is the magazine and the fort ceases to...
If you look at that modified card I posted Dobbs you will see that that fort has three slots for battery fire with three aspects covered by the fire...