To install and view these files using the Harpoon Media Viewer during gamplay, go to this or equivalant custom installation directory. If the target directory doesn't exist create it. 

Therefore navigate to: 
C:\Matrix Games\Harpoon 3 Advanced Naval Warfare\Resource\DBPics\Sub\

Create a Folder here called 014 - Open it to unzip the image updates to here:
C:\Matrix Games\Harpoon 3 Advanced Naval Warfare\Resource\DBPics\Sub\013

Unzip the files, DN-SD-03-08796 - LA 688_HUD3.png, DN-SD-04-09769 - LA 688_HUD3.png, 061207-N-6536T-045 - LA 688_HUD3.png & SUB14_Harpoon2_Image.png to the 014 folder. Start Harpoon ANW and locate the following HUD3 Database platforms to view these images.

