Deep blue sea

[Dreamslayer]

The game manual mentions ocean hexes - Deep Ocean (DO) and Shallow Ocean (SO).

4.2.1.1 Hex Terrain Types
Deep Ocean (DO) – Dark blue water hex. From a depth of 150
feet and deeper provides a benefit to submarines which are
harder to detect and attack in these hexes, depending on the
sub’s maximum depth and the ocean depth. Minefields located
in a Deep Ocean hex disperse more rapidly than does a minefield
located in a Shallow Ocean hex.
Shallow Ocean (SO) – Light blue water hex. From the ocean
surface to 150 feet deep. Submarines located in a Shallow Ocean
hex can be more vulnerable to attack and detection, depending on
the sub’s maximum depth and the ocean depth. Minefields located
in a Shallow Ocean hex disperse more slowly than do minefields
located in a Deep Ocean hex.

But in the game are only Shallow Ocean hexes.

[RangerJoe]

There are deep ocean hexes on the map for the game.

[Dreamslayer]

Choose hexes somewhere in Atlantic near left edge of the map, move the mouse on Hex info and it says "Ocean (Shallow Ocean)".

[Piteas]

This needs to be fixed.

Thank you for discovering this curious data error.
But Map data change will make all SCN incompatible with older exe's
So this would be a major patch and we decided to do this later when we do a more massive data update.

[PeteJC]

So, does this have a large (negative) effect on submarines?

[RangerJoe]

So, does this have a large (negative) effect on submarines?

Only when they are being depth charged!