That's what I figured.. wonder why the first all round sonar (I forget the name) isn't appearing as an upgrade option.. this is a fresh restart of course, but when I started OHII light ages ago the option to upgrade it appeared from the very start.
Better take a look at my mod list I suppose, though it's the same as before, just with OHII swapped out.
EDIT: Think I've figured it out, the KDB is set to become available 01/11/1939 and the first campaign starts in September.. was the campaign start date changed by any chance?
