I do not know the algorithm for raising detection levels by being next to units, but so far at least it has always raised it by enough to reveal enemy CV.
I have seen a case at Sevastopol, I had 2 units adjacent to it, and I had a high detection level, I saw units names and CV, then I rotated the southern one, begining by the original unit leaving the hex, and then I lost the detection level and couldn't see the CV anymore, nor could I see it when I moved in the new unit. I don't remember about the unit names. Maybe if I had moved in the new unit before moving out the old one, things would have been different. That said, I didn't rotate the northern unit.
< Message edited by joelmar -- 9/18/2019 7:41:00 PM >
"So much trouble in the world!" -Bob