Deck Gun Stuck

[mazzi]

Originally Posted by goldmastersims

This particular part of the game code being unable to function properly while installed on external storage is the most likely cause.

Is the correct folder and drive for the game registered in the Windows registry?
Approximate location in the registry:
"hklm\software\WOW6432Node\Ubisoft\Silent Hunter Wolves of the Pacific\GameUpdate"
"hklm\software\WOW6432Node\Ubisoft\Silent Hunter 4 Wolves of the Pacific\GameUpdate"

Have you tried using symlink for your external hdd?
Console command as administrator: mklink /D с:\games\sh4 X:\sh4
X: this is your external HDD with the NTFS file system.