At the end of the missions i have a continue mission option and a activate dipol option.
Dont understand what it means. Cant anyone tell what it means.

end the mission that's what it means... dipol is usually in reference to a type of antenna

From what I have seen Dipol drive is like underwater jump drive. Subs will use it to ambush you later on in the game.

At the end of a mission you can 'activate dipol' which will end the mission or you can continue if you want to keep shooting scrap or fighting any remaining enemies that are not part of the main mission.