Control your carrier and use it to take over islands so you get enough power to find and destroy the other carrier. The movie is not done by me (none of the movies i link to are) but it provides a good overview of the game.
Here I write what I think about the games I have played. The score is shown as a smiley before the title of the game.
Note about Movies: None of the Youtube movies that i link to are made by me and i include them only to give you a chance to see what the game looks like. Only the text and the smiley score act as my review of the game .