Sometimes you get duds, premature detonations and non-functioning magnetic detonators. Not to mention the circlers with a broken gyro. As far as I see it it is not a bug, but a feature. That is how the mk14 fishes was. Very unstable. At least until late 43. Before mid/late 43, don't get surprised if less than half of your fishes actually hit their target, much less do any significant damage. You want a simulator, you got it
