I bought the U-Boat Missions and I like it so far. I can't believe the major errors in this. The majority have been mentioned. Here's what I've seen wrong.
1.) When you choose a depth, it's about 2 or 3 meters short then what you picked.
2.) My fuel tank levels don't decrease when on patrol.
3.) FuMO-30 radar doesn't retract when submerged. You can see it under water.
4.) I get the creepy missing eyeballs (conning crew) and during certain weather conditions, they're see through.
5.) Everyone speaks English! How could they get that wrong?
6.) Same with COMSUBPAC sending me messages!
7.) The KDB hydrophone is in the wrong place, it rotates through the hatch. It should be about a meter forward away from the hatch. I also get the hydrophone contacts while on the surface.
Lets see what else is wrong.
Mast