BATTLESHIP

For this trophy, you just have to play and finish 10 games while using the military fleet (win or lose does not matter). There are two ways of going about this, through "VS" games or in campaign missions that you use the military fleet in (there more than 5 of them that use it). I would suggest getting it through the campaign missions so it cuts down on how many games you have to play overall, but it's up to you as you can easily grind them all out pretty quickly in a "player vs player" match where you have player 2 group together their ships together and take them out fast. Whichever way you decide to go, after you play your 10th game with the military fleet, the trophy will pop.