Worst trouble with the Silent Hunter series, they never took a hint from the Microprose Silent Service series (1985 and 1990) - in that series you got full credit for sinking a ship, half credit for damaging one that didn't sink. With Silent Hunter if it won't go down all the way you get nothing at all, you might as well have stayed home. You might try the big one (135% blast, 175% hole size), but after laughing about blowing the Yamato into orbit with a single shot a few times most people go back to number 3 since it has the most realistic feel to it.
