Possibly glitched Trophy?
 

For some reason, i can't get the 'Axis Aircraft Expert' trophy. I know for a fact i've completed a mission with each one but the trophy won't unlock.

Is there something i'm doing wrong to earn it or could the trophy be glitched?

I got this just weeks ago. But there is a glitch, as I'm having trouble with the Test Pilot trophy which is similar.

hello my friend

it happen to a french friend too.
restart it online with all the germans planes,it is possible your friend must use your invite to join the game to unlock your trophy and don t join with the quick game line or the custom game line.not sure it is because of it u didn t unlock the trophy but try it.
if u need help tell me ,we can do a 3 mins games ( when my wife don t play call of duty!!lol!!)

good luck ace
cheers
olife