Talk:Tutorial: Leveling/@comment-189.191.48.154-20150315212933/@comment-79.98.35.23-20150316015851

As Nanamin said, 3-2 is your best bet. Get a couple of carriers plus some torpedo cruisers to wipe out most of the enemy fleet before they have a chance to damage your sub. If your sub gets damage it should be easy enough to repair without buckets due to their low HP and repair times. Put your cruiser as flagship for the XP boost it gives. Only do the first node though, as the second node will likely damage some of your main ships.

You can also use your cruiser in the PvP matches, which typically give a lot of experience.