FF7R - Rebirth - Hard Mode - Chapter 9 - Specimen H1024 (OLD)

The only risky part is the beginning. Cait can get knocked out of his spell casts. So he might have to dodge or block depending on which opening move Specimen does.
Loadout(Barret & Cait don't require specific weapons or armor for this. Just make sure they have the correct accessories and materia):-
Cloud:-
Rune Blade, Cetran Bracer, Genji Gloves
Ice+Elemental, Ice+Magic Focus, Ice+Swiftcast
Fire&Ice+MP Absorb, Fire+Magnify, Magic Up, First Strike, Enemy Skill, ATB Boost
MATK Power +20, ATB Charge Rate Up, Synergy Damage Up, Full Power Magic
Barret:-
Fafnir Rifle, Cetran Armlet, Hermes Shoes
Time, Subversion, First Strike, ATB Assist
Enhanced Elements, Enhanced Overcharge, ATK Power +20, ATK Power +20
Cait Sith:-
Golden Megaphone, Hades Armlet, Chocokings Cape
Empowerment+Magnify, Binding
Synergy Damage Up, ATB Charge Rate Up, ATK Power +20, ATK Power +20
#ff7rebirth

[@L00k0ut]

An improved version using Skill Master ruclips.net/video/jMePqfUXV8k/видео.html