If we look only in terms of performance and effect, i think that a 16" AP shell could make more damage than a exocet. And a HE shell too.Karl Heidenreich wrote: So, using the same logic, the AP shell could be, potentially, more dangerous to a modern warship than the actual missiles?
On top of that, a shell is ( a bit ) cheaper than a guided missile.
After these details, we have to look the installation needed to fit those big guns to an actual warship.
In any case, i think that the four missouri could still be useful, sure their guns have not the precision of an exocet, but with the high precision of the radar, and with refitted guns, in 2 or 3 salvo you can destroy a type 42 destroyer 50km away, isn't it? And you have not counter measure against a shell