With the ARB Mod comes a "SH3 Commander" folder which contains the salvo.tga for each boat.
Just copy the "U-boat" folder from ARB into your SH3 Commander folder.
Then the salvo numbers will appear on the periscope TDC. But on the attack map they will be double!
brodaga already know about the problem
https://www.subsim.com/radioroom/sho...6&postcount=96