There are 3 rules to engaging an enemy in this game. Could be more but i follow 3 simple rules.
1. Know your ship. This is number one for a reason. Know what your ship can and cant do. Know the streanths and weeknesses. People who make their own ships excel at this.
2. Evaluate the enemy ship. Make sure of what guns they have, armor and speed. This one is not a game changer but will help out alot. You get a huge grinding platform with all guns faceing forward. Some people quit on site. Try and get behind it and cut the engines.
3. Keep movieng. Dont just go in a straight line and let their guns train on you. Give em hell.
Not really a rule but a statement. Dont just buy a yamato and put more guns on it. Its just more fun to sink