most people want more to do not less... the problem with most games is that they are too simple
but i think i know what you mean... would be nice just to go out on patrols. In real life though PT boats rarely went out unless they knew pretty well where the enemy was. In other words unlike subs they are short range and usually use short stabbing attacks from their home base once enemy are spotted by recon.
In the pacific it may have been different... but in the channel at least the E-boats went out to mine, attack sighted merchants, deliver commandos etc