User blog comment:Awyman13/Mysterious Phantom Trainee Assignment/@comment-24.13.186.91-20140627024941

I believe thats false information. you do need the expansions to complete these assignments. I am currently trying for these 2 as i have already unlocked them. You only get farther with the Phantom Trainee when you play on Naval Strike maps. The same goes for Phantom Prospect. You only get farther while playing on China Rising maps.