Well i could write that in the change log file but i find that to be cheating a bit. I can say that if it does not say you need to sink a merchant or a tanker, you should look for a warships, like armerd merchants
But you can allways se what type of ships you need to sink if you open up the file:
example.
In SH5 root folder you have the mission editor2
just click that to start the program.
Choose file and browse to where the pj file is located. In this case its in
sh5/data/campaign/campaignprojects, and select any of thos campaign files from the list.
I suggest you open Battle of mediterrainen.pj
when its loaded, On the taks bar select campaign and the drop down meny, edit campaign.
you will se all mission related to that campaign and on thos mssion that require a specific target you can se where it says Target types. And its thos type of ships you need to hunt.
Edit/ and its possible to put in some spoilers in the breifing as well for what type of ship you are looking for.
In the Campaign.tsr file for Totaly germany for an exampel there is a text string that says:
Campaign.CampObj.MacroObj 4.PersObj 1.Description=Sink 3 ships along the Northern Patrol line
just change that from 3 ships to 3 armered merchants.