Clear Time: 1:07 (S)
Stylish Points: 3:15 (C)
Orbs Found: 100% (S)
Bonus & Penalty: No Items
I can't get the No Damage bonus since he keeps randomly whipping out his shotgun and just spraying me. Can't dodge that shit so I have no idea what I'm supposed to do.
Seems your problem is style points, M1 is pretty difficult to rack those up since Dante likes to block and counter usually with a stinger. SS and SSS combos are pretty much your saviour
Brute, are you going with Nero/Dante for the route? I've only got that rank S with Lady and a few days ago, Vergil. Although, I am going to assume this is Lady.
What I did for that one with Lady is that I hid behind that stand next to the pillar (The area where the pope did his speech), I managed to loop the AI Dante to continuously taunt and running up towards you by the chairs in the back and completely charged Lady's Katrina Arm max. From what I gathered, You only need to achieve an Atomic! - Stylish! minimum. The results will still considered them S for that mission.
Gotcha, if anything, you might want to try it the moment he swings. Dante has this tendency to derp roll everything or fire his pistols towards the maxed charged Katrina Arm.