Hi !
I have the same problem exactly, in mission 2 and 3, can't aim correctly, so can't use bombs.
Since I use auto start, I am thinking about ins alignement, but why doesn't it work properly ? will try with gps position as explained in the video and see if it works, but it is supposed to work with ins anyway.
Appart for this issue, the campaign is fantastic, lot of work, thank you.