The dud rate is supposed to be between the TMO and Stock levels, but it does not appear to be there anymore... In the meantime, make certain that you have the duds box ticked from the Main Menu, gameplay options, but also from the captain's office, wooden radio console to the left, then gameplay options. Also, for whatever reason, the game seems to "save" all of the duds for one string in a row, such that you might have a boatload with only one dud one trip, then the next trip, the first six you shoot are bad, the next 3 good, and then the next five are bad, then back to a streak of good ones. An add-in mod is planned to increase the dud rate for those that desire that.
