You can use the debugger - "Dbgview.exe."
1. In game settings do windowed mode and escape DW game.
2. Run the Dbgview.exe. [Dbgview.exe programm, must be located in game folder!]
3. Using the command line, run game with the key "-debugoutput" :
DangerousWaters.exe -debugoutput
4. In the debugger window, will report all detections in the game [someone who discovered how the sensor and what distance].
Or as simply variant - create in scenario triggers for all platforms with your counterdetections.
Without your scenario - impossible say, why this happens
.
PS. Unfortunately "Comms Depth" in the game to work incorrect.
The submarine can get link contact even at great depths.
You can verify this by making "promote link" to some sort of object.
AI submarine comes up with a very large depth and shoot.