So, before I traveled to Joseph's island for the final face off, I realized that whenever I opened the map, it kept redirecting and showing me a very specific location in either John's (between central and west) or Jacob's region (north-west), both of which weren't marked by any symbol whatsoever. The map didn't show a third location in Faith's region, but I'm pretty sure that's because I opened it only a few times.

Can anyone confirm that this was not an isolated case? What did I miss? Could it be possible that those were the locations where the nukes were hidden ... ?

I'm really annoyed that I didn't check out these locations. I thought it was something of little importance ... -_-