An addendum on Herr Triangle: Back in the days of Silent Hunter II the red triangle was all we had. People struggled to make manual targetting mods, with varying (very little) success. It came to a point when we saw advanced release screenshots for SHIII and there was the triangle (though sometimes green or yellow in this case) we began to panic, and ask desparate questions. We relaxed somewhat when they assured us that the triangles would only be there in the easiest levels, and that true manual targetting would be an option.
Anyway, we used to be

and hated it so much we wanted to

or even

, but there are stll some who want to

.
Me, I just avoid it. I wish I could do so in SH4.