From the 12th of July there will be a new patch implemented, along with changes to some of the personal missions:
LT-7: The SPG Hunter for Object 260
MT-7: A Surprise Blow, for all chapters
MT-8: Confrontation, for all chapters
MT-9: A Worthy Opponent, for all chapters
HT-6 (renamed and fully changed). A Two-Cause Meal, for all chapters
I have updated the missions on the website to reflect these changes for you, ready for the patch.
Good luck on the battlefield.