S-ranking DHM isn't that bad. I did this with Lady/Trish. It's pretty easy to get S-SSS-ranks during combat with both imo.
Change distance attack to RT and switching weapons<- to LT for Lady. Allows to charge shots midcombat and made switching easier.
Trish is fine with the default controls once you get used to her move-set and the fact that you have to spam the spinning-sparda-move 24/7.
Almost forgt: the shotgun /spinning-sparda-move are REALLY good for breaking objects fast.
Protip: use CTRL+F to search for a specific mission.
Here's a list with all orbs
And the requirements for all difficultys (yup, it's pasta)