Hi Baltic,
Once again, congratulations for this amazing campaign, it's simply awsome.
Regarding Mission 12, I think you really could have another look at it as, I think, it's not playable without using the wingman's help.
First, it would be more interesting to use a DRYAD grid with different numbers (I mean : on the one provided, every red line is exactly the same, which seems to confuse a lot of people, as it becomes then pointless to have a SET LETTER.
Then, there is a problem within the mission :
SET LETTER N : KIGUSWH => 3327682, which are clearly not coordinates inside Bastille area, and there are 7 numbers instead of 6 so we can't put them in the INS...
SET LETTER W : DESFTMW => 1161648, this time it could be correct but i "think" it's still not within Bastille boundaries.
Thank you for reading me, I hope I was clear anough !