[Scorpius]

Nope. You need a mod like GW. It contains a milk cow. The basic definition of a milk cow is a ship or uboat which has no offensive capability as its primary and sole responsibility is to resupply other uboats.

To that end, they have less men, no torpedo tubes (afaik) and no deck gun. BUT they have a lot of torpedos and other supplies.

But the ones that i have visited, are in greek waters (afaik) and thus cannot appear to be aiding the germans. Therefore a normal merchant ship is used to transfer torpedos and supplies to uboats, so that they may continue their hunt.

Now to use a supply ship or milk cow, find one on the map, when its within its time frame of availability, and approach it. As soon as you see the correct ship - for example - in Cadiz, its the Thalia - sail near to it and 'dock' with it, the same as you would a normal base.

Since its not your home port, all you can do is alterations to your crew and start a new, null mission. Null meaning, you dont get a grid to patrol, its just nothing or null.

But of course, you do start afresh.

So when you start the null patrol, go out and start hunting again. You can either return to another milk cow or head home to get some uboat upgrades. Its up to you.

Hope this helps.