Check your maps, lie in wait, fire your torpedoes, dive, run, use decoys, hope the escorts dont find you, when the coast is clear try to pick off another. Repeat. You will love this game If you like WWII era submarine warfare and tactics. Graphics are nice, gameplay mostly easy and straight forward, easy controls. The biggest drawback is that this is more game than simulator. It really leaves you wanting better SONAR modeling, weapons limitations and advancements, different boats, more advance AI and so on. But as a game based on submarines it is a great little time waster. I hope the authors continue to push it forward to more simulator like features