This is one of the more difficult achievements to earn. The best approach is to get a partner in a small Island Capture map and have him bring a destroyer to attack your battleship with torpedoes. You have to communicate while doing this so that he doesn’t sink you. The trick is to get all of your dark green health to disappear while being able to repair before the light green health bar also disappears and causes you to sink. Note that artillery fire is probably necessary to help fine tune this, but does not typically cause the light green “potential” damage bar to appear (which is why you need torpedoes). You will need to actively control your damage control parties to stop the flooding with just a small fraction of your health left. This may take several tries, but definitely works.