A glitch or extreme unluckiness?

[Redwine]

It is normal when you are in early war times and having bad weather, and your sub is not equiped with radar warning system.

Then the only defense you have is your sonar and your crew eyes.

When you sail in bad weather, with very low visibility, do not use high time compression, check weather often, you can know there is a bad weather when you run at high time compression at the map, because you can see the depth gauge needle flickering between 3 and 6 meters instead to be steady at 5 meters.

In this condition, you must to dive to periscope depth very often, to listen if an enemy is near, if not.... when your crew spot the enemy in the fog, it is too later, because it is too near, and sure you will be shoot by many rounds of shells before you can dive.