[elder_gutknecht]

After attack the DD in Narvik, when it turns red, a german task force will enter
Then go to the end of the red arrow and you will see a capital ship and a lot of DD, report contacts and near uboats will help to disband the DD protection circle, now you'll have a chance to destroy that capital ship
Or you can attack from a side and run like a fool, again the circle will disband it's a hard work evade the 5 DD that protect the capital ship
Good luck mate