Snail,
I've seen fellows hold a low bomber rank through the month, yet have but one sortie. How do they do that?
Could could provide an example for that? Especially for defining what a "low rank" means in this context...
Because getting a really low rank (<100) is impossible with only one sortie in Late War. If anything you would need at least two, one town milking sortie and one successful goon base capture to have any hope for that.
See my current bomber rank:

This tour I was exclusively milking towns for a change, 9 missions with 22 sorties in Mossie and B-29
The resulting bomber rank is still 'only' 91, and it's obvious why: The lack of base captures. Remember, #1 bomber pilot is the one with the lowest sum of all sub category ranks. To really push my ranking I would to have to fly a few goon sorties.