Richard,
Great game and nice extras like choosing the level of the game, the radar, and so on. Nicely done!
I am not sure if you know this but Allison LaMotte created a battle ship game that I thought was really well done. She included quiz slides so people had to get an answer right to win the square. You can see her work here.
https://community.articulate.com/articles/blow-your-learners-out-of-the-water-with-this-battleship-e-learning-game/I liked it so much I made a game of my own where I added images, sounds, and music.
http://jeffrfiles.s3.amazonaws.com/ArticulatePosts/Battle%20Ship%20Examples/Ancient%20Battleship%20-%20Storyline%20output/story_html5.html I also did one for StarTrek.
http://jeffrfiles.s3.amazonaws.com/ArticulatePosts/ELH%20Challenge%20242%20Sound%20Effects%20Star%20Trek/story_html5.html.
I really like the ability to have the game be quizzed based so some learning could take place. Thanks Richard for bringing up the topic again.