Are you all mad! it was the land battle I struggled on and the sea battle that was mad easy for me!

Basically get your ships into a straight line, as the french come down get your whole line to fire at the nearest boats, as they get closer have boats in groups of 2 huddled together in each direction so you can fire at the enemy all the time, concentrate on one boat at a time so he gets a number disadvantage and use the sail and hull bullets primarily for max damage, being accurate when executing your attack helps to of course.