Originally Posted by BSM
Are you sure to get A rank overall you need to do it on hard? I was able to get 3 A's in rescue missions on normal
Yes. Easy only gets you up to C, and Normal up to B.
Of course you can get A-Ranks in the rescue missions on any difficulty. But for the overall grade you need to play on hard and also get all As in the rescue missions. So then why bother and do it on easy?