1. I'd exclude the English voice file is somehow related to the issue, since the bug occurs anyway.
2. I jusrt completed Tuchanka ( what epic cut scenes!) and I'll do the N7 mission soon.
3. Derox has the right to not share his gamertag if he don't want to post it as several asked: that's called privacy

4. As I mentioned before many players are skeptical because the event seems too pleasing to be good. However there is no need to be rude ( from both sides)
5. Under any other circumstance I'd say you were lucky as you mentioned derox but that's a software. If it worked with you it should work to other under the same circumstances. Unless you got a "bug in the bug" and that would be a real luck

6. Let's post in English please: it's the language of this forum. Since ME3 is PEGI 18+ I assume we all have receive at least basic knowledge and English language at school, right?

7. If I'll be able to complete the mission I'll make sure you get a statue on the Citadel itself, derox... near the Krogan one.

Just a note: the pic you posted shows the Grissom Academy mission as still active and not completed... just for the records...